Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun pile_up

1 sense of pileup

Sense 1
pileup -- (multiple collisions of vehicles)
       => collision -- (an accident resulting from violent impact of a moving object; "three passengers were killed in the collision"; "the collision of the two ships resulted in a serious oil spill")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb pile_up

3 senses of pile up

Sense 1
accumulate, cumulate, conglomerate, pile up, gather, amass -- (collect or gather; "Journals are accumulating in my office"; "The work keeps piling up")
       => increase -- (become bigger or greater in amount; "The amount of work increased")

Sense 2
pile up, heap up, stack up -- (arrange into piles or stacks; "She piled up her books in my living room")
       => gather, garner, collect, pull together -- (assemble or get together; "gather some stones"; "pull your thoughts together")

Sense 3
roll up, collect, accumulate, pile up, amass, compile, hoard -- (get or gather together; "I am accumulating evidence for the man's unfaithfulness to his wife"; "She is amassing a lot of data for her thesis"; "She rolled up a small fortune")
       => store, hive away, lay in, put in, salt away, stack away, stash away -- (keep or lay aside for future use; "store grain for the winter"; "The bear stores fat for the period of hibernation when he doesn't eat")