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.
Each thought, belief and intention is a building block. Alexander T. Englert, The Conversation, 23 Oct. 2025 The conversation that continued across one of New York City’s most exclusive tables was electric and meaningful, and touched on themes that are the building blocks of both Glamour and Marriott: sisterhood, community, and forging a path for the next generation. Petra Guglielmetti, Glamour, 22 Oct. 2025 The findings provide a rare window into the planet's original building blocks and could offer scientists clues about what Earth and its neighboring worlds were like in their earliest eras. Sharmila Kuthunur, Space.com, 20 Oct. 2025 View gallery - 7 images Functioning a little like oversized Lego, the versatility of shipping containers ensures that architects never run out of ideas for using them as building blocks. New Atlas, 6 Oct. 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 5 Nov. 2025.

Kids Definition

building block

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