Letters that make ABC's
s, a, b, c are letters that make 'ABC's'
1 possible definitions for 'ABC's'
Under this definition, abc's is a noun and has the following properties:
rudiment, ABCs, first rudiment, first principle, alphabet, ABC have the same meaning as 'ABC's'
'ABC's' can be a type of fundamentals, basics, fundamental principle, basic principle, bedrock.
'ABC's' can be a useage of plural, plural form.