building block

noun

Synonyms of building blocknext
: a unit of construction or composition
especially : something essential on which a larger entity is based

Examples of building block in a Sentence

historically the infantry division has been a basic building block of armies
Recent Examples on the Web
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.
The strategies available are not competing answers so much as building blocks that can be sequenced thoughtfully. Joshua Harmon, Forbes.com, 1 July 2026 The body uses omega-3s as building blocks and chemical messengers that help reduce inflammation, among other benefits. Matt Fuchs, Time, 26 June 2026 Assembling two dozen worthy building blocks is a mighty tall task, especially for a team starting with just a handful. Barry Jackson, Miami Herald, 11 June 2026 The building blocks of Ray’s crimes—compulsiveness, transgressiveness, poor boundaries—were there from early adulthood. Adeline Goss, New Yorker, 11 June 2026 See All Example Sentences for building block

Word History

First Known Use

1756, in the meaning defined above

Time Traveler
The first known use of building block was in 1756

Cite this Entry

“Building block.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/building%20block. Accessed 5 Jul. 2026.

Kids Definition

building block

noun
: a unit of construction or composition
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