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
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Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for stack (up)
Verb
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Central bank buying remains a cornerstone, with emerging market institutions, particularly in the East, continuing to accumulate reserves.—
Sean Lee,
Forbes.com,
27 Jan. 2026 -
Across some of the most productive farmland in the United States, a nutrient called phosphorus has been accumulating in the soil for decades, at levels far beyond what crops actually require.—
Dinesh Phuyal,
The Conversation,
26 Jan. 2026
Verb
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By combining enhanced light-gathering capability with advanced image processing, Hollyland says the Lyra achieves the kind of image quality more usually associated with mirrorless cameras, but in a more compact form factor.—
Mark Sparrow,
Forbes.com,
23 Jan. 2026
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On Thursday, Greystone's linemen gathered for a crucial safety briefing, underscoring the importance of caution during what could become a hazardous, multi-day operation.—
Nakell Williams,
CBS News,
23 Jan. 2026
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Cite this Entry
“Stack (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/stack%20%28up%29. Accessed 29 Jan. 2026.
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