Dictionary: ACE – ACI

adj. 1. 1903 Amer. sl. – high in esteem
adj. 2. 1929 colloq. – best; top-rated; first-class, excellent, wonderful
adj. 3. 1930s sl., orig. US – expert 
adj. 4. 1936 US sl., esp. African-American – of a friend: intimate, closest 
adj. 5. 1957 US sl. – satisfactory, O.K.
adj. 6. 2008 – asexual; without sexual feelings or desires
int. 1980s sl. – an exclamation of satisfaction
n. 1. a1300 obs. – bad luck, misfortune; worthlessness, nothing
n. 2. a1400 – the side of a dice marked with a single spot or point, and counting as one; a throw of ‘one’, the lowest and worse number or score
n. 3. 1440 rare – a single point, a minute portion; a jot, a particle, an atom
n. 4. L16 sl. – the female genitals; the vagina
n. 5. 17C sl. – the penis
n. 6. a1796 – a person who stands out, excels, or represents perfection in any field, activity, or occupation; an expert; an adept
n. 7. 1801 Sc. & Amer. sl. – the best one; a thing which is held in high esteem; something of merit
n. 8. 1848 sl., orig. US – something or someone of high quality or held in high esteem; a solidly dependable person; a good-hearted person 
n. 9. 1866 Sc. – the smallest possible amount
n. 10. 1878 US sl. – in pool: the number one ball
n. 11. 1898 sl. – $1; $1’s worth
n. 12. 1899 Amer. sl. – an important, influential person; a prominent individual; a big shot, the chief, the boss
n. 13. 1902 Amer. sl. – in baseball: an outstanding pitcher; a team’s best pitcher
n. 14. 1910s sl., orig. US – an outstanding person, whether in character or qualifications 
n. 15. 1910s US sl. – a single example
n. 16. 1916 – a pilot, aerial gunner, etc., who has shot down many enemy aircraft
n. 17. 1918 Amer., ironic usage – a pilot or student pilot who has destroyed five or more friendly aircraft 
n. 18. 1920 – in golf: a hole in one
n. 19. 1927 US criminals’ sl. – a 1-year jail sentence 
n. 20. E20 – a person who excels at something; one of extraordinary skill
n. 21. E20 Amer. sl. – something excellent
n. 22. 1938 drugs sl. – one single pill of amphetamine, barbiturate, or tranquillizer 
n. 23. 1941 US sl. – a close friend, a hero; an admired figure
n. 24. 1940s slsometimes derogatory – a Black person, but often used by Blacks themselves to designate a friend
n. 25. 1949 US sl. – a police officer; a detective
n. 26. 1950s sl. – a term of address
n. 27. 1950s sl. – something useful or important
n. 28. 1950s UK criminals’ sl. – £1 
n. 29. 1961 Amer. restaurant usage – a small, usually round, table designed to seat a single patron; also a single customer  
n. 30. 1964 US college sl. – the grade A 
n. 31. 1966 US army sl. – a White serviceman 
n. 32. 1969 US college sl. – a foolish or ineffectual person; a clumsy person; an oaf, a jerk: used sarcastically 
n. 33. 1974 sl. – in gambling: $100
n. 34. 1970s drugs sl. – marijuana; a marijuana cigarette 
n. 35. 1970s drugs sl. – phencyclidine (PCP), a dangerous hallucinogenic based on animal (pig) tranquillizer 
n. 36. 1979 sl. – a professional killer
n. 37. 1989 US sl. – 1/8 oz. of a drug
n. 38. Bk1992 prison sl. – the finest, one who is completely trustworthy 
n. 39. 1999 US sl. – in dice games: a rolled one  US sl.
n. 40. 20C Brit. sl. – the anus
n. 41. 20C Amer. lunch counter sl. – a grilled cheese sandwich 
n. 42. 20C African-American sl. – a man who favours flamboyant, up-to-the-minute dress 
n. 43. Bk2000 Amer. sl. – a nickname for a foolish and ineffectual person
n. 44. 2000s US prison sl. – a pull on a cigarette 
n. 45. Bk2006 Amer. journalists’ sl. – Assistant City Editor of a newspaper 
n. 46. 2008 – an asexual person; a person who does not experience sexual feelings or desires
vb. 1. 1929 US sl. – to manipulate someone, esp. through flattery or deception; to swindle or cheat a person out of something
vb. 2. 1929 US sl. – to survive, esp. to survive intensive police interrogation
vb. 3. 1929 – in golf: to complete a hole in one stroke
vb. 4. 1935 US criminals’ sl. – to take part uninvited; to interfere 
vb. 5. 1940s US sl. – to move or drive fast
vb. 6. 1953 Amer. sl. – to be in charge of; to lead
vb. 7. 1950 sl., orig. US college usage – to do well, to succeed, as in an examination; to make a perfect or nearly perfect score; to pass a test easily; to surpass someone or something; to beat someone or something 
vb. 8. 1960 Amer. sl. – to outwit; to gain an advantage over
vb. 9. 1975 sl. – to kill
vb. 10. 1990s US sl. – to hold in high esteem

adv. Bk1898 Eng. dial. – wholly, entirely

n. 1962 African-American sl. – a very close friend 

n. 1971 African-American sl. – one’s very best friend 

n. 1962 African-American sl. – one’s good and loyal friend 

n. 1974 African-American sl. – a best friend 

n. 1958 US college sl. – one’s best friend 

n. 1957 US college sl. – one’s best friend 

n. 1988 African-American sl. – a very close and trusted friend 

n. 1. 1960s African-American sl. – an important person; a big shot 
n. 2. 1962 African-American sl. – a very close friend 

n. 1962 sl., orig. African-American – one’s best and most trustworthy friend 

n. 1962 sl., African-American – one’s best and most trustworthy friend 

n. 1959 US college sl. – one’s best friend 

adj. 1. Amer. sl. – outscored; surpassed
adj. 2. Bk2000 Amer. sl. – alcohol intoxicated  

adj. 1. 1927 Amer. sl. – first-rate, excellent
adj. 2. 1955 US sl. – cross-eyed
adj. 3. 1970s US sl. – bisexual
adv. 1. 1948 US sl. – on an angle, with one side higher than the other
adv. 2. 1948 US sl. – riding a racehorse with the right stirrup higher than the left
n. 1. 1920s African-American sl. – 3, esp. in craps dice 
n. 2. 1921 US sl. – a panic attack; a fit of nerves; a sudden fit of temper
n. 3. 1967 US & W. Indies sl. – a best friend 
n. 4. 1989 US sl. – a fellow prisoner upon whom you can rely without question  
vb. 1987 US sl. – in craps: to sustain a heavy loss  

n. 1607 – physical or mental slothfulness, esp. as a condition leading to listlessness and lack of interest in life; apathy, lethargy, torpor

adj. 1609 rare – characterized by slothfulness

n. 1999 US sl. – in craps: a first roll of three

n. 1623 rare – torpor, stupor

int. 1999 Brit. sl. – called out to register delight in, and identification with, club dance music

n. Bk1942 Amer. sl. – something excellent

n. 1973 UK sl. – a leader of a group of mods; an exceptionally fashionable mod

adj. 1941 US sl. – excellent; first-class; faultless

n. 1960s US homosexual sl. – a sexually talented homosexual, capable of both active and passive roles 

n. 1953 US African-American sl. – a sophisticated, aware person; a street-wise person  

adj. 1. 1885 US sl. – highly valued; preeminent, first in favour or esteem; first-rate; the best; faultless; absolute
adj. 2. 1930s sl., orig. US prison usage – of an inmate: loyal, trustworthy, popular among his peers 
n. 1953 African-American sl. – a sophisticated, streetwise person  

n. Bk1942 Amer. sl. – something excellent

n. Bk1992 sl. – in baseball: a team’s best pitcher

vb. 1. 1920s tramps’ sl. – to curry favour successfully 
vb. 2. 1930s US criminals’ sl. – to interfere, to become involved with 
vb. 3. 1971 US sl. – to manipulate someone or something into a situation
vb. 4. 1992 US sl. – to become associated with a group and work your way into it
vb. 5. 20C Amer. sl. – to understand

n. 1. 1908 orig. US – something held privately in reserve until needed, esp. for a winning stroke; a hidden reserve, asset, or advantage 
n. 2. c1920 colloq. – an ace face down on the table so other players are not aware of it

vb. 1. 1955 US sl. – to make a perfect score on a school or college test; to score an ‘A’ on an exam
vb. 2. 1955 US sl. – to succeed at the last minute

n. 1992 African-American sl. – a very close friend 

n. c1935 Amer. sl., orig. African-American – a husband or male lover 

n. 1607 – the name given to the field in the vicinity of Jerusalem, purchased with the blood-money received and relinquished by Judas Iscariot; hence, a field of bloodshed, a scene of slaughter or butchery; a wretched place

n. 1992 US sl. – an amphetamine or central nervous system stimulant

n. 1996 US African-American sl., chiefly Southern/Midwest usage – one’s most important lover; the most important member of the opposite sex one knows, as a husband, a pimp, or a boyfriend 

n. 1. 1953 US sl. – a leader of a street gang
n. 2. 1953 US sl. – a youth gang’s top fighter

n. 1929 US sl. – a one-dollar bill

n. 20C sl., World War I usage – a combat aviator who brought down or killed twenty-give or more enemy aircraft 

n. 2000s sl. – the area of dark skin around the anus

n. 1. M17 sl. – the female genital area
n. 2. L19 sl. – an expert

n. 1. L16 sl. – the vagina
n. 2. 17C sl. – the penis
n. 3. Bk1998 sl. – death in combat

n. 1. 1811 sl. – a widow, esp. one wearing mourning weeds
n. 2. L19 sl. – the female genital area
n. 3. Bk1921 sl. – a black-haired woman
n. 4. 1940s US criminals’ sl. – an admirable person 
n. 5. 1943 sl., sometimes derogatory – a Black person, but often used by Blacks themselves to designate a friend
n. 6. Bk1998 sl. – death in combat  
n. 7. 20C Brit. rhyming sl. – AIDS 
n. 8. 2000s sl. – the area of dark skin around the anus

n. 1. E19 sl. – the female genital area
n. 2. 20C Brit. sl. – a first-class person

adj. 1982 Bahamas sl. – skilled at  

adj. 1962 US sl. – a-one, best

vb. 1. 1933 US sl. – to fool someone; to swindle someone; to deprive someone of something, esp. by underhanded or dishonest means
vb. 2. 1950s sl. – to defeat; to take something away
vb. 3. 1950s sl., orig. US college usage – to do well, to succeed, as in an examination; to make a perfect or nearly perfect score 
vb. 4. 1951 Amer. sl. – to extricate oneself from difficulty by deceit or cleverness
vb. 5. 1960 Amer. sl. – to outwit; to gain an advantage over
vb. 6. 1964 US sl. – to exclude someone
vb. 7. 1983 US sl. – in poker: to win a hand by bluffing while holding a relatively low-value hand
vb. 8. Bk2000 Amer. sl. – to be fortunate or lucky

adv. 1960 US sl. – head over heels

adj. 1549 rare – having no head or leader or chief
n. 1. a1387 obs. – a priest who is not subject to the authority of a bishop
n. 2. 1607 obs. rare – a (supposed) headless animal or person

n. a1000 obs. rare – priests who are not subject to the authority of a bishop; also, bishops who are not subject to the authority of a metropolitan or archbishop

adj. 1. 1656 – having or recognizing no ruler, head, or chief; leaderless
adj. 2. 1656 – of a book, manuscript, or piece of writing: lacking a beginning
adj. 3. 1816 – lacking a head, headless

n. 1611 rare – the condition of being without a leader or head; lack of leadership

adj. 1. 1715 – having or recognizing no governing head or chief
adj. 2. 1731 – headless
adj. 3. 1833 – lacking the beginning, as an imperfect manuscript or verse

n. 1989 US homosexual & prison sl. – a very effeminate prison homosexual 

adj. 1. a1616 – sour, with an addition of bitterness or astringency, as unripe fruit
adj. 2. 1822 – of speech, manner,  or temper: bitter and sharp; forthright and cutting

adj. 1869 literary usage – embittered; exasperated; severe 
vb. 1657 obs. – to sour or embitter; fig. to exasperate

n. 1793 – embitterment; a feeling of bitterness; also, exacerbation of a negative feeling or problem

adj. 1853 – of a sour, harsh, or severe character; bitter and sharp, esp. in speech, manner, or temper; later, astringently sour or harsh-tasting

adj. 1870 rare – characterized by acerbity; acerbic

n. 1727 rare – sourness, harshness in taste, bitterness

n. 1. a1538 – of men, their words and actions: sharpness mingled with bitterness, keen harshness
n. 2. 1608 – sourness of taste, mingled with bitterness or astringency; harshness, roughness of taste
n. 3. E17 – a bitter experience; a harsh or sharp comment, etc.

adv. 1. a1425 obs. – harshly, abrasively
adv. 2. 1793 – with a sour, bitter, or astringent flavour; later, in a sharp or cutting manner

n. Bk2008 – a fear of sourness

adj. 1828 – brainless; unintelligent; unthinking

n. Bk2008 – a fear of sourness

adj. 1623 obs. rare – of bread: full of chaff, coarse

n. Bk1905 Eng. dial. – acorns

n. 1623 obs. rare – a person whose hair was never cut

adj. 1731 rare – belonging to a heap

vb. 1612 rare – to heap up, to raise up in heaps

n. 1614 rare – the act of heaping up, accumulation

adj. 1865 rare – pert. to heaping up; piled or heaped up

adj. 1731 obs. rare – full of heaps

adj. 1864 rare – of the form or appearance of little heaps

adj. 1901 US. sl. – first-rate; quite satisfactory; fine; wonderful; excellent; well-respected; of the very best quality; superior
n. 1. Bk1942 Amer. sl. – something excellent
n. 2. 1987 US sl. – in poker: a hand with a pair of aces

adj. 1920 US sl. – first-rate, quite satisfactory; fine, wonderful, marvellous, excellent

n. 20C sl. – in pinochle: one ace from each of the four suits

phr. 1976 US sl. – in bar dice games: rolls of one have no point value

n. 1761 – the act of becoming acid or sour

n. 1756 – the state of turning sour; tendency to sourness; incipient or slight acidity

adj. 1707 – turning sour; having the tendency to turn acid; hence, slightly sour, ‘turned’

adj. 1885 US sl. – preeminent, first in favour or esteem; first-rate; faultless; absolute; highly valued
n. 1930s sl., orig. US prison usage – a prison inmate popular among his peers 

n. 1999 US sl. – in craps: a roll of two

n. 1960s Amer. sl. – a very close friend

n. 1917 US sl. – a one-dollar bill

adj. 1902 US sl. – wonderful; excellent; well-respected; fine, preeminent; in high favour; esteemed

n. c1429 – in Roman History: a cup to hold condiments, esp. vinegar, for serving at the table

n. a1398 – in Roman History: a cup to hold condiments, esp. vinegar, for serving at the table

n. 1623 obs. rare – a leaf salad prepared with vinegar

n. 1657 obs. – salads mixed with vinegar to stir up appetite

adj. 1822 – used in salads, as lettuce, cress, etc.

n. 1612 obs. – ‘salads and vinegar’

n. 1657 obs. rare – a leaf salad prepared with vinegar

vb. 1942 Amer. sl. – to get through safely or easily

adj. a1400 rare – resembling or containing vinegar; sour or acidic like vinegar

n. a1425 obs. – the quality of being vinegary; sourness, sharpness

adj. 1605 obs. – resembling vinegar; sour or acidic like vinegar

adj. 1714 – pert. to vinegar; having the qualities of vinegar; sour

n. 1526 – vinegar

n. 1866 – a hidden advantage, not to be revealed until a suitable moment

adj. 1930s sl., orig. US – best, excellent, expert, wonderful 

adj. 1. 1954 Amer. sl. – first-rate, excellent  
adj. 2. 1971 US sl. – sexually active with or attracted to both males and females; bisexual
adj. 3. 1972 US sl. – bisexual  
adj. 4. 1977 US sl. – of a friend: closest
adj. 5. 1970s African-American sl. – complex, unstable, neither one thing nor the other 
adj. 6. 20C Amer. sl. – of mixed quality; having both good and bad, high and low; satisfactory; mediocre; so-so  
n. 1. 1920s African-American sl. – 3, esp. in craps dice 
n. 2. 1944 US sl. – in backgammon: a variant rule under which the game is started in positions other than the standard layout  
n. 3. 1964 US sl. – a panic attack; a fit of nerves; a sudden fit of temper
n. 4. 1967 US & W. Indies sl. – a best friend
n. 5. 1974 US sl. – in craps: a roll of a one and a two  
n. 6. 1980 US sl. – a bisexual  
vb. 1948 US sl. – of a jockey: to ride with the inside stirrup lower than the outside stirrup

• ACH!
int. 1481 – an exclamation of impatience, disappointment, contempt, etc.

vb. c1325 obs. – to heat, to warm; fig. to kindle anyone’s wrath; to heat with passion; to chafe

n. 1878 obs., humorous usage – an aching state 

n. 1530 obs. rare – the act of exchanging; an exchange

vb. 1250 obs. – to escape

n. 1646 obs. rare – habitual indisposition, ailment, an attack of chronic illness

vb. c1400 obs. rare – to become greedy of flesh, to thirst for blood, to become cruel

n. 1756 rare – eagerness for blood, bloodthirsty fury, ferocity

n. 1792 – in India: a spiritual teacher or leader; an influential mentor

adj. c1440 obs. rare – chased

n. c1374 obs. – the act of purchasing or buying; purchase; contract, bargain
vb. 1601 obs. rare – to purchase, to lay in provision of

n. c1386 obs. – a purchaser or buyer of provisions; esp. the officer who purchased provisions for the royal household; a purveyor

n. 1. 1469 obs. – things purchased; provisions that were not made in the house, by the baker or brewer, but had to be purchased as wanted
n. 2. 1582 literary usage – a devoted follower; a loyal friend and companion 

n. c1386 obs. – a purchaser of provisions; a purveyor; a provider or preparer of ‘cates’ or delicacies; a caterer

n. a1377 obs. – provisions purchased; also, the room or place allotted to the keeping of all such provisions

adj. 1828 chiefly poetic usage – chattering 

int. Bk1905 Eng. dial. – an exclamation of disgust or abhorrence 

int. 1. 1891 – expressing assent or understanding; okay, all right
int. 2. 1891 – expressing surprise, doubt, anger, joy, etc.
n. Bk1898 – in India: a printer, or pressman

n. 1895 Eng. dial. – a large comfortable room or place
vb. 1. 1785 Eng. dial. – to wander about aimlessly and idly; to loiter, to lounge; to hang about with intent to eavesdrop; to sneak  
vb. 2. Bk1905 Eng. dial. – to hurry, to hasten

n. 20C Brit. rhyming sl. – rain 

vb. c1430 obs. – to escheat, to confiscate; to do one out of

vb. c1384 obs. – to check, to bring to a sudden stop

vb. c1450 obs. – to cheer, to cheer up; to hearten

n. 1. 1938 Aust. euphemism – the buttocks 
n. 2. 1960s sl. – the testicles

n. 1590 – a fabulous river of the Lower World; hence, the infernal regions

adj. 1849 chiefly literary usage – relating to or suggestive of the underworld of the ancient Greeks, or the mythical river Acheron; infernal, hellish; dark, gloomy 

adj. 1597 chiefly literary usage – belonging to Acheron, infernal; hence, dark, gloomy; also, waiting to cross the river of death, tottering on the brink of the grave, moribund 

adj. 1610 obs. rare – infernal, hellish; dark, gloomy

n. c1230 obs. – occasion, reason, purpose, motive

vb. c1430 obs. – to escheat property or goods, to confiscate; to do one out of

n. c1430 obs. – achieving, accomplishment (the OED notes this usage is an error for ‘a chevisaunce‘)

adj. 1878 – suffering from aches

n. Bk1898 – the Tamil name for a barber

n. 1531 obs. – achievement, performance

vb. 1. c1385 obs. – to bring to an end or termination; to finish, to terminate
vb. 2. 1393 obs. – to come to a natural end or conclusion; to end, to result, to turn out
vb. 3. 20C sl. – to achieve coition with a woman

n. 2004 US sl. – a devoted fan of the film, ‘The Big Lebowski’

adj. 1858 chiefly poetic usage – in a state of chill; chilly 

adj. 1579 – resembling Achilles; invulnerable, invincible

n. 1810 – a vulnerable spot or weak point

vb. 1672 obs. rare – to play Achilles with; to harass or chase as Achilles did the Trojans

adj. 1860 poetic usage – chiming, ringing 

adj. Bk1942 Amer. sl. – impatient

n. Bk1903 – a treacherous friend and adviser an able but unprincipled counsellor

n. Bk1991 – an abnormal fear of the dark

n. 1997 New York police sl. – a taxi driver 

vb. c1200 obs. – to choke, to suffocate

n. c1000 – an inferior church servant, which formerly waited on the priests and deacons, performing the offices of lighting the candles, carrying the bread and wine, and paying other servile attendance

n. 1599 obs. – a person who attends a priest and performs subordinate duties, as assisting at the altar, lighting and bearing candles, etc.

vb. c1150 obs. – to choose out; to select

n. 1584 rare – a person who does not believe in the divinity of Jesus Christ

n. 1692 obs. – disbelief in God

adj. 1799 – neutral, uncoloured; also, bland, uninteresting

adj. 1879 obs. rare – colourless; achromatic

vb. 1845 – to deprive of colour; to render achromatic

adj. 1761 obs. – free from colour

adj. 1879 rare – colourless; without colouring matter

n. 1. 1674 obs. rare – an error in computing time, or fixing dates; the erroneous reference of an event, circumstance, or custom to a wrong date
n. 2. 1877 rare – the state of timelessness; deficiency of time  

adj. 1962 chiefly film and literary usage – not arranged in order of time 

adj. 1879 obs. rare – colourless; achromatic

adj. a1400 obs. rare – eighth

adj. 1864 – full of aches; suffering from continuous or recurring pain

adj. 1992 colloq. – aching, hurt; also, sad, heart-rending 

adj. 1. 1756 – biting, severe, unpleasant
adj. 2. 1916 – of colour: intense, vivid
n. 1. 1768 – rancour, spite; bitterness, sourness
n. 2. 1910s sl. – cheek; impudence, heavy sarcasm
n. 3. 1948 US restaurant sl. – vinegar 
n. 4. 1965 Barbados sl. – rum
n. 5. 1965 Amer. drugs sl. – lysergic acid diethylamide (LSD) 
n. 6. 1980s drugs sl. – MDMA 
n. 7. 1990s W. Indies sl. – a special unit of the Jamaican police force, especially feared because of their severe tactics
n. 8. 20C teen & high school sl. – steroids 
n. 9. 2003 Trinidad and Tobago – any alcoholic beverage 

adj. 1668 obs. – that tastes both sharp (or sour) and astringent

n. 1966 Amer. dial. – hives

n. 1990s drug culture sl. – one tablet or capsule of LSD 

n. 1. 1960s sl. – one whose brain is deemed to have suffered from an excess of hallucinogens
n. 2. 2002 drugs sl. – the victim of an excess of MDMA 

n. 1920s sl. – a pound, a sovereign

n. 1960s US drugs sl. – one who uses LSD regularly and is frequently under its influence 

n. 20C Brit. sl. – barbed or caustic comments

n. 1966 US sl. – an habitual user of the hallucinogen LSD

adj. 1985 – under the influence of LSD

n. 1971 US sl. – a depression brought on by LSD use

n. 1966 US sl. – an habitual user of the hallucinogen LSD

n. 1988 sl. – a youth cult that had its beginnings in the 1980s, which mainly involves getting our of your nut on drugs and leaping up and down to loud synthetic noises known as house music; a kind of popular synthesized dance music with a fast repetitive beat, popular in the 1980s and associated with the taking of drugs such as Ecstasy

n. 1988 drug culture sl. – an illegal party, often held in a large building such as a warehouse, and often outside the big cities, where thousands of young people pay for their entertainment and allegedly consume MDMA and other illegal drugs 

adj. 1971 – of colour: vivid, psychedelic

adj. 1. 1936 – of speech: cutting, acerbic, bitter
adj. 2. 1971 – strikingly bright, intense, or gaudy in colour

n. 1988 – a kind of popular dance music incorporating elements of jazz, funk, and hip hop

adv. 1674 – sourly, cuttingly, sarcastically

n. 1926 sl. – a con artist; a swindler

n. 1971 US drugs sl. – the sensation while under the influence of LSD of having an only face 

n. 1971 US sl. – LSD

n. 1960 US drugs sl. – a place to consume LSD in safety and seclusion 

n. 1968 drugs sl. – one who takes extra-large doses of LSD 

n. 1966 Amer. dial. – hives 

n. 1966 sl. – a type of rock music associated with the taking of hallucinogenic drugs

adj. 1678 – that tastes both sharp (or sour) and sweet

n. 1. 1854 – a very thorough test; a crucial test
n. 2. 1960s Amer. sl. – a party at which LSD is added to food and drink
n. 3. 1967 US sl. – a hallucinatory experience induced by the taking of LSD and considered as a test of maturity, courage, etc.
n. 4. 1967 US sl. – a party or public celebration given for the purpose of taking LSD
vb. 1970 Amer. sl. – to create or enhance an atmosphere suggestive of hallucinations induced by LSD in (a room); to make psychedelic

n. 1854 – a sharp or severe manner of speaking, esp. one characterized by cutting or acerbic remarks

n. 1. 1966 sl. – a dose of LSD
n. 2. 1967 sl. – a hallucinatory experience induced by taking LSD

vb. 1684 – to make somewhat acid or sour; fig. of the temper

adj. 1732 – rendered somewhat acid or sour; fig. somewhat soured in temper

n. 1920s sl. – a pound, a sovereign

adj. 1675 obs. rare – sour and sweet blended

adj. 1800 rare – slightly sour; fig. sour-tempered

adj. 1. 1674 – sharp-tasting, slightly sour
adj. 2. 1769 – sour-tempered

adj. 1978 – suggestive of the effects of LSD; psychedelic; also, influenced by acid rock

int. 1999 Brit. sl. – called out to register delight in, and identification with, club dance music

n. 1866 obs. rare – steel

vb. 1860 rare – to convert iron into steel

n. 1852 rare – conversion of iron into steel

n. 1. 1628 rare – in Roman history: a battle line in a military formation
n. 2. 1646 obs. – keen attention of the eye, ear, etc., when fully directed towards any object

n. 1828 rare – operative surgery

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Updated: February 27, 2023