Definition of Q:

• the seventeenth letter of the English alphabet, has but one sound ( that of k), and is always followed by u, the two letters together being sounded like kw, except in some words in which the u is silent. See Guide to Pronunciation, 249.
• Seventeenth letter of the alphabet.
• Is the seventeenth letter of the English alphabet, and with the vowel u, by which it is always followed, has the sound of kw or k simply, but it never terminates a word. As a numeral it stands for 500, and with a dash over it for 500, 000.
• the seventeenth letter of the English alphabet, has but one sound that of k, and is always followed by u, the two letters together being sounded like kw, except in some words in which the u is silent. See Guide to Pronunciation, / 249. Q is not found in Anglo-Saxon, cw being used instead of qu; as in cwic, quick; cwen, queen. The name k/ is from the French ku, which is from the Latin name of the same letter; its form is from the Latin, which derived it, through a Greek alphabet, from the Ph/nician, the ultimate origin being Egyptian.
• The seventeenth letter in the English alphabet.

Usage examples for Q

1. At Corps H. Q. and V. Beach the same went on, and no doubt with similar results.  The Incomparable 29th and the "River Clyde" by George Davidson

2. Q. Did he look back?  The Mystery of a Hansom Cab by Fergus Hume

3. Swell, said the Q. M. C. We'll haul down that plush and fluffy stuff, dump those chairs and rugs over the side, plant my desk here, my chief clerk's there, my other clerks' desks over there, open those fine wide windows and let the north Atlantic breezes blow on our beaded brows while we're doing our paper work.  The U-boat hunters by James B. Connolly

4. Only about four hundred and eighty- five years old, according to his I. Q. Do you think it was Bobby?  What Rough Beast? by Jefferson Highe