STACK UP Synonyms: 19 Similar and Opposite Words

stack (up)

verb

Definition of stack (up)

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

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Recent Examples of Synonyms for stack (up)

Verb

Quaternary ammonium compounds can also accumulate in the testicles, Hrubec said.

— Sandee LaMotte, CNN Money, 7 Aug. 2026
The United States continued to accumulate legal power over the second half of the twentieth century.

— Mark Jia, Foreign Affairs, 7 Aug. 2026

Definition of accumulate

Verb

The clubs use that data, as well as additional information gathered through other testing methods, to aid in the management of the training loads and performance of their athletes.

— Justin Birnbaum, Sportico.com, 10 Aug. 2026
People gather at Edge at Hudson Yards in Manhattan in New York City during a 90% partial solar eclipse on April 8, 2024 in New York City.

— Jamie Carter, Forbes.com, 10 Aug. 2026

Definition of gather

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“Stack (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/stack%20%28up%29. Accessed 13 Aug. 2026.

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Synonyms of stack (up)

verb

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