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Definitions

backbone

[bak-bohn] / ˈbækˌboʊn /


NOUN
spinal column of vertebrate
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They are often dismissed as a punch line, but Roxane Gay explains why women’s book clubs are the backbone of a passionate literary culture.

From Los Angeles Times • Apr. 9, 2026

Nvidia’s graphics processing units have been the backbone of AI development thus far, but central processing units are having a moment.

From MarketWatch • Mar. 25, 2026

Damon Hoff, president and chair of Machzike Hadath Synagogue, described Hatzola as the "backbone of the community, it's for everyone that lives here".

From BBC • Mar. 23, 2026

Untangling the government’s stake is the critical issue for private shareholders in Fannie and Freddie, which buy mortgages from lenders and form the backbone of the U.S. housing market.

From Barron's • Mar. 20, 2026

Three days later the phosphorus atoms were ready, and I quickly strung together several short sections of the sugar-phosphate backbone.

From "Double Helix" by James D. Watson