chance event, fortuity, accident - anything that happens by chance without an apparent cause

recrudesce, develop, break - happen; "Report the news as it develops"; "These political movements recrudesce from time to time"

come up, arise - occur; "A slight unpleasantness arose from this discussion"

intervene - occur between other event or between certain points of time; "the war intervened between the birth of her two children"

transpire - come about, happen, or occur; "Several important events transpired last week"

give - occur; "what gives?"

operate - happen; "What is going on in the minds of the people?"

supervene - take place as an additional or unexpected development

proceed, go - follow a certain course; "The inauguration went well"; "how did your interview go?"

come - come to pass; arrive, as in due course; "The first success came three days later"; "It came as a shock"; "Dawn comes early in June"

fall - occur at a specified time or place; "Christmas falls on a Monday this year"; "The accent falls on the first syllable"

anticipate - be a forerunner of or occur earlier than; "This composition anticipates Impressionism"

develop - be gradually disclosed or unfolded; become manifest; "The plot developed slowly";

recur, repeat - happen or occur again; "This is a recurring story"

come off, go over, go off - happen in a particular manner; "how did your talk go over?"

roll around, come around - happen regularly; "Christmas rolled around again"

materialise, materialize, happen - come into being; become reality; "Her dream really materialized"

bechance, befall, happen - 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)

bechance, befall, betide - become of; happen to; "He promised that no harm would befall her"; "What has become of my children?"

coincide, concur - happen simultaneously; "The two events coincided"

chance - be the case by chance; "I chanced to meet my old friend in the street"

break - happen or take place; "Things have been breaking pretty well for us in the past few months"

shine, strike, fall - touch or seem as if touching visually or audibly; "Light fell on her face"; "The sun shone on the fields"; "The light struck the golden necklace"; "A strange sound struck my ears"

turn out - prove to be in the result or end; "It turns out that he was right"

contemporise, contemporize, synchronise, synchronize - happen at the same time