often capitalized, often attributive
1
a : the 3rd letter of the English alphabet
b : a graphic representation of this letter
3
: the keynote of a C-major scale
4
: a graphic device for reproducing the letter c
5
: one designated c especially as the third in order or class
6
a : a grade rating a student's work as fair or mediocre in quality
b : one graded or rated with a C
7
: something shaped like the letter C
8
: a structured language for creating computer programs that is designed to be compact and efficient