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to pile up
01
to increase in amount or quantity over time
Intransitive
Grammatical Information
Composition
phrasal
Action verb
Regular
Inseparable
Particle
up
Base verb
pile
Present tense
pile up
3rd person singular
piles up
Present participle
piling up
Past simple
piled up
Past participle
piled up
Examples
If you don't address your issues, they'll just pile up over time.
02
to stack things on top of each other
Transitive: to pile up sth
Examples
She piled up the dirty dishes in the sink.
03
to put a large quantity or group of things in one place or on top of one another
Transitive: to pile up sth
Examples
He's been piling up antique collections from around the world.
