ABCs

ABC

 (ā′bē-sē′)

n. often ABCs

1. The alphabet: learned her ABCs when she was three years old.

2. The rudiments of reading and writing.

3. The rudiments of a subject: taught the ABCs of geometry.

ABC's

or ABCs

(ˈeɪˌbiˈsiz)

n. (used with a pl. v.)

1. the alphabet.

2. the basic skills of spelling, reading, and writing.

3. the basic facts, principles, or skills of any subject.

Also, ABC (for defs. 1,3).

Thesaurus

Noun

1.

ABCs - the elementary stages of any subject (usually plural); "he mastered only the rudiments of geometry" ABC, ABC's, first principle, first rudiment, rudiment, alphabet basic principle, fundamental principle, fundamentals, basics, bedrock - principles from which other truths can be derived; "first you must learn the fundamentals"; "let's get down to basics" plural, plural form - the form of a word that is used to denote more than one