stack (up)

Definition of stack (up)next
as in to accumulate
to gradually form into a layer, pile, or mass those newspapers have been stacking up in the basement since we moved here

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for stack (up)
Verb
  • Understanding how those filaments emerge is key to understanding how gas accumulates and ultimately collapses into new stars.
    Samantha Mathewson, Space.com, 1 June 2026
  • Rainwater tends to accumulate at the road edges.
    NC Weather Bot, Charlotte Observer, 1 June 2026
Verb
  • Movie night is a chance for the Islanders to gather together to witness some of the major moments and own up and apologize.
    Carolyn Burt, Oc Register, 29 May 2026
  • Helicopter footage captured by NBC4 showed police tape cordoning off a section of the residential street, where a large number of emergency responders were gathered.
    Clara Harter, Los Angeles Times, 28 May 2026
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Cite this Entry

“Stack (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/stack%20%28up%29. Accessed 3 Jun. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster