c or C 
/ˈsi:/ noun
plural c's or cs or C's or Cs /ˈsi:/ noun 1 : the third letter of the English alphabet [count] ▪ The word “access” is spelled with two cs. [noncount] ▪ Many English words begin with c. 2 [count] : the Roman numeral that means 100
▪ CCV [=205] 3 : a musical note or key referred to by the letter C : the first tone of a C-major scale [count] ▪ play/sing a C [noncount] ▪ a song in the key of C 4 [count] : a grade that is given to a student for doing average work
▪ She got a C on the exam. ▪ He's a C student. [=a student who gets C's for his schoolwork] 5 — used to refer to the third of three or more people, places, or things that are being considered ▪ If A, B, and C divide the coins equally, how many does each person get?
▪ CCV [=205]
▪ She got a C on the exam. ▪ He's a C student. [=a student who gets C's for his schoolwork]
