Happening

n. occasion; occurrence, event

v. occur, take place

In the late 1950s and early 1960s, a happening was a performance, event or situation meant to be considered as art. Happenings could take place anywhere, were often multi-disciplinary, often lacked a narrative and frequently sought to involve the audience in some way. Key elements of happenings were planned, but artists would sometimes retain room for improvisation.
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Noun
1. an event that happens
(synonym) occurrence, natural event
(hypernym) event
(hyponym) accompaniment, concomitant, co-occurrence
(derivation) happen, hap, go on, pass off, occur, pass, fall out, come about, take place
Adjective
1. taking place; "the parade is still happening"
(similar) on

Verb
1. come to pass; "What is happening?"; "The meeting took place off without an incidence"; "Nothing occurred that seemed important"
(synonym) hap, go on, pass off, occur, pass, fall out, come about, take place
(hyponym) break, recrudesce, develop
(derivation) happening, occurrence, natural event
2. happen, occur, or be the case in the course of events or by chance; "It happens that today is my birthday"; "These things befell" (Santayana)
(synonym) befall, bechance
(hypernym) hap, go on, pass off, occur, pass, fall out, come about, take place
3. chance to be or do something, without intention or causation; "I happen to have just what you need!"
(hypernym) chance
(verb-group) befall, bechance
4. come into being; become reality; "Her dream really materialized"
(synonym) materialize, materialise
(hypernym) hap, go on, pass off, occur, pass, fall out, come about, take place
(hyponym) appear, come out
5. come upon, as if by accident; meet with; "We find this idea in Plato"; "I happened upon the most wonderful bakery not very far from here"; "She chanced upon an interesting book in the bookstore the other day"
(synonym) find, chance, bump, encounter

n. happening, event

n. happening, occasion; occurrence, event