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

Instead, overtones accumulate and churn and a loose banner of guitar is draped across the song.

— Sadie Sartini Garner, Pitchfork, 4 Oct. 2026
Because microorganisms in water turn regular mercury into methylmercury, a toxic chemical form that binds tightly to fish tissue, the heavy metal accumulates to higher levels in aquatic animals.

— Sandee LaMotte, CNN Money, 2 Oct. 2026

Definition of accumulate

Verb

Luann gathers everyone and literally gives Vicki her flowers and thanks her for putting Housewives on the map.

— Brian Moylan, Vulture, 5 Oct. 2026
More than 1,000 people were gathered at the site, and more than 50 shots were fired in at least two locations about a block apart in Vienna, Dooly County Sheriff Craig Peavy told WMAZ-TV.

— ABC News, ABC News, 4 Oct. 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 9 Oct. 2026.

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Synonyms of stack (up)

verb

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