Meaning of ABC in English

ABC

transcription, транскрипция: [ eɪ bi: si: ]

( ABCs)

1.

The ABC of a subject or activity is the parts of it that you have to learn first because they are the most important and basic.

...the ABC of Marxism.

N-SING : N of n

2.

Children who have learned their ABC or their ABCs have learned to recognize, write, or say the alphabet. ( INFORMAL )

N-COUNT : poss N

Collins COBUILD Advanced Learner's English Dictionary.      Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне.