building block

noun

: 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.
Even as tragedy and struggle beset the tenement districts, the very qualities that defined the tenement’s unfavorable physical conditions—over-crowdedness and density—became building blocks for community. Annie Polland, Time, 25 Sep. 2025 The team created larger 3D structures capable of complex movements by linking unit cells as building blocks. Aamir Khollam, Interesting Engineering, 19 Sep. 2025 The most basic building block is that water temperatures reach their warmest levels after basking in summer’s heat. Chris Dolce, CNN Money, 9 Sep. 2025 And though it may be frowned upon in some contexts, this two-letter, omnipresent filler word is a small but mighty building block of conversation. Ayana Archie, NPR, 3 Sep. 2025 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 29 Sep. 2025.

Kids Definition

building block

noun
: a unit of construction or composition
Last Updated: - Updated example sentences
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