ABC Synonyms: 31 Similar and Opposite Words

ABC

noun

ˌā-(ˌ)bē-ˈsē

Definition of ABC

as in principles

usually ABC's or ABCs plural general or basic truths on which other truths or theories can be based a book on the ABCs of computer usage

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Recent Examples of Synonyms for ABC

Noun

According to the police report, Diaz-Torres failed balancing tests, walking in a straight line and reciting the alphabet.

— Christy Gutowski, Chicago Tribune, 26 June 2026
The trouble was, the Latin alphabet now had no letter for this sound.

— Literary Hub, Literary Hub, 25 June 2026

Definition of alphabet

Noun

Certification framework finalized For aircraft that introduce new technologies, the G-1 Issue Paper establishes the certification basis before engineers begin proving compliance.

— Aamir Khollam, Interesting Engineering, 10 July 2026
Until now, vertical landings of orbital-class rockets had been performed only by SpaceX, which does them on a regular basis.

— Mike Wall, Space.com, 10 July 2026

Definition of basis

Noun

LLMs, for example, are not given robust, explicit prescriptions on grammar, or an overly structured map for interpreting what matters and why about every point of knowledge in their datasets.

— ArsTechnica, ArsTechnica, 13 July 2026
But beneath their differences lies a common grammar of tension, development, transformation, and release.

— Literary Hub, Literary Hub, 10 July 2026

Definition of grammar

Noun

Her grieving brother, Bobby Gifford, couldn't stand that her body was left out in the elements somewhere, never to be found again.

— Amanda Lee Myers, USA Today, 11 July 2026
Running for five seasons into September 1977, the hourlong drama with comic elements never was a ratings hit, only denting the year-end primetime Top 30 once in the three-network universe.

— Erik Pedersen, Deadline, 10 July 2026

Definition of elements

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.

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“ABC.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ABC. Accessed 16 Jul. 2026.

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Synonyms of ABC

noun

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