Happen is defined as to take place or occur by chance.
(verb)An example of happen is running into a friend at a coffee shop.
See happen in Webster's New World College Dictionary
intransitive verb
Origin: ME happenen: see hap & -en
See happen in American Heritage Dictionary 4
intransitive verb hap·pened, hap·pen·ing, hap·pens
Origin:
Origin: Middle English happenen
Origin: , from hap, chance; see hap
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