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

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for stack (up)

Verb

Echo chambers, firehoses of information, discerning what’s real and what’s AI-generated, all accumulate to chip away at trust.

— Amanda Gerut, Fortune, 16 Oct. 2026
The fan guards inside the walk-in cooler had accumulated dust.

— Sacbee.com, Sacbee.com, 16 Oct. 2026

Definition of accumulate

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

Style

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

Copy Citation

Synonyms of stack (up)

verb

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

compunction

Popular in Grammar & Usage

'Affect' vs. 'Effect'

Merriam-Webster’s Great Big List of Words You Love to Hate

The Exceptions of '-s' and '-es' Plurals

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?

Popular in Wordplay

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

7 Words for Bad Endings and Rough Situations

Did 'orange' the fruit or the color come first?

Popular

'Affect' vs. 'Effect'

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'

Games & Quizzes