stack up

1. 1.

   arrange into piles or stacks

   “She piled up her books in my living room”

   Synonymspile upheap up

   Broadergather

Questions about stack up

What does stack up mean?

stack up means "arrange into piles or stacks".

What is another word for stack up?

Close synonyms include pile up, heap up. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is stack up a common word?

stack up is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.