Reverse Dictionary: HAPPEN

ADJECTIVES
1535 — OCCURRENT that occurs or happens; occurring
1659 — HAPPENABLE capable of happening; that may possibly happen → obs.
1881 — ON planned; hence, in progress → colloq.
1978 — ON TOP about to happen → UK sl.

NOUNS
1205 — TIDING something that happens; an event, incident, occurrence → obs.
1225 — CASE a thing that befalls or happens to anyone; an event, occurrence, hap, or chance → obs.
1250 — TIMING happening, occurrence; good or ill fortune; an event, an occurrence → obs.
1374 — BEFALLING happening, occurrence, event
1374 — BETIDING happening, occurrence → obs.
1624 — BEING occurrence, happening → obs.
1886 — DIGGINGS AND DOINGS proceedings, ‘goings on’, happenings → Eng. dial.
1899 — INTROMISSIONS goings on with a person → Sc.
1920 — ACTION what is going on or happening; thus a situation or state of affairs, anything exciting, current, interesting, depending on the context, e.g. the chance for sex, a musical performance, a night’s gambling → 1920 sl., orig. African-American
1945 — SCENE a situation; a happening → US sl.
1960 — SCENE the place where what’s happening is happening → Amer. sl.

PHRASES
1600 — HOW THE WORLD WAGS how affairs are going
1774 — BLOW HIGH, BLOW LOW whatever may happen
1779 — IN THE OFFING in the projected future; likely to happen
1952 — THAT’S THE WAY THE BALL BOUNCES that’s the way things are and there’s nothing one can do about it; that’s the way things happen → US sl.
1956 — THAT’S THE WAY THE COOKIE CRUMBLES that’s the way things are and nothing can be done to change it → Amer. sl.
1968 — COME HELL OR HIGH LIVING something will definitely happen, no matter the difficulty or obstacle; come hell or high water → Amer. dial. 
2002 — WHAT’S THE DANCE? what’s going on? what’s going to happen? → UK prison sl.

VERBS
..888 — BECOME to come about, to come to pass, to happen, to fall to one’s lot, to befall → obs.
..888 — I-TIDE to happen, to befall → obs.
1000 — BELAMP to happen, to occur, to befall → obs.
1000 — BELIMP to happen, to occur, to befall → obs.
1000 — I-TIME to happen, to befall → obs.
1131 — TIDE to happen, to befall → arch.
1200 — TO-COME to happen, to befall → obs.
1205 — TIME to befall, to happen → obs.
1225 — BETIME to betide, to happen, to befall → obs.
1250 — BETIDE to happen, to befall
1305 — ON-BECOME to befall, to happen → obs.
1340 — HAP to happen, to come to pass, to occur, to chance → arch.
1374 — UNBETIDE to fail to happen → obs.
1400 — ADVENTURE to come by chance, to happen, to befall → obs.
1450 — BEHAP to befall, to happen → obs.
1515 — BEHAPPEN to befall, to happen → obs.
1527 — BECHANCE to happen, to befall, to chance
1529 — FALL AT HAND to be near at hand, to be going to happen → obs.
1537 — SUCCEED to happen, to come to pass, to take place → obs.
1567 — SUCCESS to happen → obs.
1577 — BEWORD to happen, to come to pass → obs.
1591 — BEFORTUNE to befall, to happen, to chance
1604 — FALL FORTH to happen; to occur → obs.
1654 — OBVENE to occur, to befall, to happen → obs.
1674 — IMPEND to be about to happen; to be imminent or near at hand
1743 — FALL to befall, to betide; to happen, to occur → Sc. & Eng. dial.
1825 — WAIT to befall, to happen → Sc.
1882 — BEGET to happen, to befall → Eng. dial.
1905 — ON-BEFALL to befall, to happen to → Eng. dial. (Bk.)
1930 — JUMP OFF to happen to start happening → sl.
1930 — POP UP to create, to make happen, to cause → sl.
1940 — COOK to occur, to happen, to take place → Amer. sl.
1960 — BE OFF to happen, esp. of a violent incident → sl.
1990 — CLOCKWORK ALONG to go smoothly; ‘to go like clockwork’ → UK sl.
1990 — POP OFF to happen; to start → sl.
2006 — COME DOWN to happen → US sl. (Bk.)