ABC Definition

ābē-sē
abcs
noun
The alphabet.
Webster's New World
The rudiments of reading and writing.
American Heritage
The basic or simplest elements (of a subject); rudiments.
Webster's New World
The rudiments of a subject.
Taught the ABCs of geometry.
American Heritage

(US, usually plural only, uncountable) The alphabet. [First attested from around (1150 to 1350).]

Do you know your ABCs?
Wiktionary
Synonyms:
abbreviation
American Bowling Congress.
Webster's New World
American Broadcasting Company.
Webster's New World

Other Word Forms of ABC

Noun

Singular:
ABC
Plural:
abcs

Origin of ABC

  • The first three letters of the Latin alphabet, standing for the whole alphabet

    From Wiktionary