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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Outside the detention center on Wednesday, Texas state police deployed chemical irritants toward protesters, who had gathered in support of the detainees being held at the facility.—
Arkansas Online,
Arkansas Online,
30 Jan. 2026
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Another separatist group called Stay Free Alberta has been gathering signatures for a petition to ask the provincial government to call a referendum, and some meetings have drawn large crowds.—
Lex Harvey,
CNN Money,
30 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 4 Feb. 2026.
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