noun pl. Q's, q's

1. the seventeenth letter of the English alphabet: via Latin from the early Greek koppa, a borrowing from the Phoenician
2. any of the speech sounds that this letter represents, as, in English words, where it is typically followed by u (except in words borrowed from Arabic), the (kw) of queen or (k) of conquer
3. a type or impression for q or Q
4. the seventeenth in a sequence or group
5. an object shaped like

adjective

1. of q or Q
2. seventeenth in a sequence or group
3. shaped like