• OMA
n. one’s grandmother …1962 Amer. dial.
• OMADAUN
n. 1843 Ireland – a stupid person; a simpleton, a fool; a lazy, good-for-nothing fellow
• OMADAWN
n. M19 Ireland – a fool
• OMADHAUN
n. 1818 Ireland – a fool, a simpleton; a dull, stupid person; a term of abuse
• OMAHOG
n. 1876 US jocular usage – a resident of Omaha, Nebraska
• O’MALLEY
n. 1990s sl. – a policeman
• OMAR SHARIF
n. 2000s rhyming sl. for ‘grief’ – unpleasantness, unhappiness
• OMBERTY
n. abundance …1575 obs. rare
• OMBLE
vb. to walk slowly and with difficulty; to totter or stagger on …Bk1905 Eng. dial.
• OMBRAGEOUS
adj. 1. 1587 – affording shade; shady
adj. 2. 1601 – of persons: suspicious, jealous; apt to disposed to take offense
adj. 3. 1612 – abounding in shade; shaded by trees or the like
• OMBREY
n. 1. M19 sl. – a man
n. 2. L19 sl. – a term of address
n. 3. 1990s sl., orig. US students’ usage – a male friend
• OMBRIFUGE
n. a refuge or shelter against rain …1868 rare
• OMBROLOGY
n. the branch of meteorology that deals with rain …1845
• OMEE
n. 1. 1859 sl., orig. showmen’s usage – a male person, a fellow
n. 2. M19 sl. – a landlord
• OMEE-PALONE
n. a homosexual man …1966 UK sl.
• OMEE-PALONEY
n. a homosexual man …1966 UK sl.
• OMEE-POLONE
n. a male homosexual …1960s sl.
• OMEGA
n. 1. 1651 – the last of a series; the last word; the end or final development
n. 2. 1996 UK sl. – MDMA (ecstasy)
• OMELETS CANNOT BE MADE WITHOUT BREAKING EGGS
phr. things cannot be accomplished without the sacrifice of something in itself valuable …1898
• OMELETTE-EYED
adj. having very round eyes …1969 Amer. dial.
• OMEN
n. low grade PCP …1993 US drug culture sl.
• OME-PALONE
n. a homosexual man …1966 UK sl.
• OMER
n. a landlord …M19 sl.
• OMEY
n. a landlord …M19 sl.
• OMI
n. a landlord …M19 sl.
• OMICK
n. a handful …Bk1905 Sc.
• OMIE
n. a male person, a fellow …1859 sl., orig. showmen’s usage
• OMIE-PALOME
n. a homosexual man …1966 UK sl.
• OMIGOD!
int. used for expressing surprise or horror …1982 US sl.
• OMINAL
adj. pert. to omens; from which an omen is drawn …1651 obs.
• OMINATE
vb. 1. 1582 obs. – to prognosticate from omens; to augur, to forebode
vb. 2. 1667 obs. – to serve as an omen, to portend
• OMINATION
n. the act of omening or presaging; foreboding …1589 obs.
• OMINOUS
adj. of good omen, auspicious; fortunate …1597 obs.
• OMINOUSLY
adv. with presage of good, happily …1597 obs.
• OMINY
n. a fad or fanciful contrivance …Bk1905 Eng. dial.
• OMI-PALOME
n. a homosexual man …1966 UK sl.
• OMIPALONE
n. a male homosexual …1960s sl.
• OMISE
vb. to omit …a1425 obs. rare
• OMISSIVE
adj. characterized by omitting, neglecting to perform, or leaving out …1629
• OMITTANCE
n. omission …1600 obs. rare
• OMLIGUS
n. an omnibus …1877 Eng. dial.
• OMNEITY
n. the condition of being all …1638 rare
• OMNIACTIVE
adj. active in all things or everywhere; working in all places …1846
• OMNIANA
n. notes or scraps of information about everything, or about all kinds of things …1807
• OMNIARCH
n. ruler of all things …1848
• OMNIBENEVOLENCE
n. universal benevolence …1834
• OMNIBENEVOLENT
adj. benevolent towards all …1679
• OMNIBUS
adj. 1857 – relating to or serving for numerous distinct objects at once; comprising a large number of items or particulars
n. 1. M19 sl. – a prostitute
n. 2. M19 sl. – the vagina
n. 3. 1888 – a man or boy who assists a waiter at a hotel, restaurant, etc.
• OMNIBUS TRAIN
n. a railway train stopping at all the stations on the route …1893
• OMNICAUSALITY
n. the fact of being the cause of all things …1678
• OMNICOMPETENCE
n. competence in all causes …1900
• OMNICOMPETENT
adj. competent or having jurisdiction in all causes …1827
• OMNICREDULITY
n. universal credulity; capacity of believing anything whatever …1845
• OMNI-ERUDITE
adj. learned in all or very many subjects …1835
• OMNI-ESSENCE
n. universal essence or being …1624
• OMNIETY
n. the condition of being all …1638 rare
• OMNIFARIOUS
adj. of all kinds or forms; exceedingly various; dealing with all kinds of things …1653
• OMNIFEROUS
adj. bearing all things, or of all kinds …1656
• OMNIFIC
adj. making all things; all-creating …1667
• OMNIFICENT
adj. making all things …1862
• OMNIFIDEL
adj. believing everything; holding all creeds …1848
• OMNIFORM
adj. of all forms or shapes; taking any or every form …1647
• OMNIFORMAL
adj. of all forms or shapes; taking any or every form …1839
• OMNIFORMIST
n. one who assumes all forms or fashions; one who conforms to all …1683 rare
• OMNIFORMITY
n. the being of all forms …1644
• OMNIFY
vb. 1. 1622 obs. – to make everything of; to account as all in all
vb. 2. 1810 – to render universal
• OMNIGATHERUM
n. omnium gatherum; a gathering of all sorts; a miscellaneous assemblage, collection, or mixture of persons or things; a confused medley …a1400 obs.
• OMNIGENER
adj. of all kinds …1857 rare
• OMNIGENOUS
adj. of all kinds …1650
• OMNIGERENT
adj. universally working. performing all kinds of work …1865
• OMNILEGENT
adj. reading everything; acquainted with all or a very great amount of literature; addicted to much reading …1828
• OMNILINGUAL
adj. speaking or understanding all languages …1893
• OMNILOQUENT
adj. speaking of all things or on all subjects …1824
• OMNILUCENT
adj. shining upon all or everywhere …1651
• OMNIMODE
adj. existing in all modes or ways, of all sorts …1656
• OMNIMODOUS
adj. existing in all modes or ways, of all sorts …1627
• OMNINESCIENCE
n. ignorance of everything; universal ignorance …1856
• OMNINESCIENT
adj. ignorant of everything …1890
• OMNIPARENT
adj. producing or bringing forth all things …1609
• OMNIPARIENT
adj. producing or bringing forth all things …1886
• OMNIPARITY
n. the state of being all equal; universal equality …1635
• OMNIPAROUS
adj. producing or bringing forth all things …1755
• OMNIPATIENT
adj. patient of everything, having unlimited endurance …1831
• OMNIPERCIPIENCE
n. a perceiving all things …1664
• OMNIPERCIPIENCY
n. a perceiving all things …1664 obs.
• OMNIPERCIPIENT
adj. perceiving all things …1664
• OMNIPERFECT
adj. all-perfect …1678 obs.
• OMNIPOTENCE
n. infinite or unlimited power; almightiness …1566
• OMNIPOTENT
adj. 1. 1596 humorous usage – capable of anything; unparalleled; huge
adj. 2. 1598 – all-powerful; having full or absolute power or authority; exceedingly strong or mighty
• OMNIPOTENTIARY
adj. omnipotent …1659 obs. rare
• OMNIPREGNANT
adj. ready to produce anything …1611
• OMNIPRESENCE
n. presence everywhere …a1822
• OMNIPRESENCY
n. presence everywhere …1647 obs.
• OMNIPRESENT
adj. present everywhere; present at the same time in all places …a1711
• OMNIPRESENTIAL
adj. pert. to omnipresence …a1716 obs. rare
• OMNIPREVALENT
adj. having all power or influence; all-prevailing …a1661
• OMNIPRUDENT
adj. having universal foresight, or exercising universal providence …1642 obs.
• OMNIREGENCY
n. all-ruling condition; universal rule …1616 obs.
• OMNISCIAN
n. one who professes to know everything …1593 nonce word obs.
• OMNISCIENCE
n. universal knowledge …a1845
• OMNISCIENCY
n. infinite knowledge …1640 obs.
• OMNISCIENT
adj. 1791 – knowing all things; having universal or very extensive knowledge
n. 1794 – one having very extensive knowledge
• OMNISCIENTLY
adv. with universal knowledge …1856
• OMNISCIENTNESS
n. universal knowledge …1727
• OMNISCIOUS
adj. knowing all things; having universal or very extensive knowledge …1588 obs.
• OMNISCITURIENT
adj. desiring to know everything …1837 obs.
• OMNISCRIBENT
adj. writing on all subjects …1891
• OMNISCRIPTIVE
adj. writing on all subjects …1821
• OMNISENTIENCE
n. universal feeling or sensation …1851
• OMNISIGNIFICANCE
n. universal significance or meaning …1835
• OMNISPECTIVE
adj. 1743 – looking into or beholding all things
• OMNIST
n. 1839 nonce word obs. – one who believes in all religions
• OMNISUFFICIENCE
n. 1660 obs. rare – the quality of being all-sufficient
• OMNISUFFICIENCY
n. 1577 obs. rare – the quality of being all-sufficient
• OMNISUFFICIENT
adj. 1543 obs. or rare – all-sufficient
• OMNITEMPORAL
adj. 1890 – relating to all times
• OMNITENENT
adj. 1656 obs. – holding or containing all things
• OMNITOLERANT
adj. 1855 – tolerant of everything
• OMNITUDE
n. 1839 rare – the fact of being all; universality; the whole, the total sum
• OMNIUM
n. 1. 1766 – the whole sum of what one values or is interested in
n. 2. 19C – a piece of furniture with open shelves for receiving ornamental articles, etc.
• OMNIUM GATHERUM
adv. 1648 obs. – in a confused medley; promiscuously
n. 1530 – a gathering of all sorts; a miscellaneous assemblage, collection, or mixture of persons or things; a confused medley; disorder
• OMNIVAGANT
adj. 1656 – wandering or roaming everywhere or in all directions
• OMNIVALENCE
n. 1607 obs. – omnipotence
• OMNIVALENT
adj. 1609 obs. – all-prevailing, all-powerful, omnipotent
• OMNIVALOUS
adj. 1773 obs. – all-prevailing, all-powerful, omnipotent
• OMNIVARIOUS
adj. 1624 obs. – of all varieties or different kinds
• OMNIVERBARIOUS
adj. B1900 – using all sorts of words
• OMNIVERBIVOROUS
adj. 1858 humorous usage – capable of ‘swallowing’ all words
• OMNIVIDENCE
n. 1884 – the capacity of seeing all things
• OMNIVIDENCY
n. a1661 obs. – a seeing of all things; universal inspection
• OMNIVISION
n. 1861 – the act or faculty of seeing all things
• OMNIVOLENT
adj. 1656 obs. – willing everything
• OMNIVORACITY
n. 1. 1889 – a devouring or eating all kinds of food
n. 2. 1889 – an insatiable appetite for all activities or pursuits
• OMNIVORANT
adj. 1852 – devouring or eating all kinds of food
• OMNIVORE
n. 1890 – a person or animal that eats all kinds of food
• OMNIVOROSITY
n. 1. 1896 – a devouring or eating all kinds of food
n. 2. 1896 – an insatiable appetite for all activities or pursuits
• OMNIVOROUS
adj. 1. 1656 – devouring or eating all kinds of food
adj. 2. 1791 – taking in everything available, as with the mind; insatiable
• OMNIVOROUSNESS
n. 1. 1727 – a devouring or eating all kinds of foods
n. 2. 1727 – an insatiable appetite for all activities or pursuits
• OMO
adj. 1995 UK sl. – used for signalling that a woman’s husband is not at home (Old Man Out)
• O, MOMMER!
int. 1891 Amer. sl. – an exclamation of wonder
• OMOPHAGIA
n. 1706 – the eating of raw food, esp. raw flesh
• OMOPHAGIC
adj. 1869 – eating raw food, esp. raw flesh
• OMOPHAGIST
n. 1884 – an eater of raw flesh
• OMOPHAGOUS
adj. 1857 – eating raw flesh
• OMPERLODGE
vb. 1809 Eng. dial. obs. – to contradict
• OMPERLOGIES
n. Bk1905 Eng. dial. obs. – apologies for not undertaking a work, difficulties urged in excuse
• OMPHALISM
n. 1868 rare – centralization in government
• OMPHALOMANCY
n. 1652 – divination by the number of knots on the umbilical cord at birth, of the number of future children of the mother
• OMPLUST
n. 1. 1897 Sc. – a gale, a breeze
n. 2. 1897 Sc. – a rush, hurry
• OM-TIDDLY-OM-POM
n. 1910s sl. – a lavatory
• OMY
adj. 1669 Eng. dial. obs. – of land: mellow
• OMYGOD
n. 1992 US sl. – a Plymouth Omega
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Updated: February 28, 2023
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