The definition of frequent is something that happens often or keeps happening.(adjective)
An example of frequent is the heart beat in a living person.
See frequent in Webster's New World College Dictionary
Origin: ME < OFr < L frequens (gen. frequentis), ? akin to farcire, to stuff: see farce
See frequent in American Heritage Dictionary 4
Origin: Middle English, ample, profuse
Origin: , from Old French
Origin: , from Latin frequēns, frequent-, crowded, numerous, frequent.
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