ABC(S) Synonyms: 31 Similar and Opposite Words

ABC 1 of 2

noun (1)

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

Synonyms & Similar Words

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Antonyms & Near Antonyms

ABC's

2 of 2

noun (2)

variants or ABCs

plural of ABC

as in basis

general or basic truths on which other truths or theories can be based a book on the ABCs of computer usage

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for ABC

Noun

Bulgarian uses the Cyrillic alphabet while English uses the Latin one.

— Rebecca Johnson, Chicago Tribune, 1 Oct. 2026
Yet a soft travel case with an X-Ray print of toiletries; a yo-yo bordered with the alphabet from Japanese games company Freshthings; and a monogrammed metal zester add variety to the mix.

— Amy Verner, Vogue, 28 Sep. 2026

Definition of alphabet

Noun

While the 28-year-old hit 19 homers and stole 41 bases, his 98 wRC+ ranked 14th among qualified second basemen.

— Gary Phillips, New York Daily News, 9 Oct. 2026
That concept forms the basis of membrane-free electrolysis, which avoids the membrane traditionally used to separate the two electrode reactions.

— Kaif Shaikh, Interesting Engineering, 9 Oct. 2026

Definition of basis

Noun

And so lyric arrives, unbridled by the laws of grammar, pressing its hooves to the measure of music.

— Literary Hub, Literary Hub, 7 Oct. 2026
A student who used Claude for a grammar check may look identical on paper to a student who outsourced the entire assignment.

— Melissa Loble, Forbes.com, 5 Oct. 2026

Definition of grammar

Noun

In most cases, bed and board have to be paid for, but there are a series of daily spending caps on different elements, such as food and hotel costs.

— The Week UK, TheWeek, 11 Oct. 2026
Part of her vision is that juxtaposition of elements, and leaning into making her audience feel that sense of discomfort.

— Marissa R. Moss, Rolling Stone, 10 Oct. 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 12 Oct. 2026.

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Synonyms of ABC

noun (1)

noun (2)

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