Meaning of Q in English

[q] n, pl q's or qs often cap, often attrib (bef. 12c) 1 a: the 17th letter of the English alphabet b: a graphic representation of this letter c: a speech counterpart of orthographic q

2: a graphic device for reproducing the letter q

3: one designated q esp. as the 17th in order or class

4: something shaped like the letter Q

Merriam-Webster English vocab.      Английский словарь Merriam Webster.