1. noun /ɡʌn/
a) A cannon with relatively long barrel, operating with relatively low angle of fire, and having a high muzzle velocity. JP 1-02.
This is my rifle, this is my gun. One is for fighting, one is for fun. (U.S. military cadence, used to make recruits memorize that the only correct term for a soldiers standard-issue firearm is a rifle, not a gun.)
b) A cannon with a 6-inch/155mm minimum nominal bore diameter and tube length 30 calibers or more. See also: howitzer; mortar. JP 1-02.
2000: by the winter of 1962, the Brewer Surfboards Hawaii gun was the most in-demand big-wave equipment on the North Shore. — Drew Kampion at surfline.com [
2. verb /ɡʌn/
a) To shoot someone or something, usually with a firearm.
He gunned down the hitmen.
b) To speed something up.
The CEO gunned down that idea before we could present it to the board.
3. adjective /ɡʌn/
Daniel is gun at basketball.
Wikipedia foundation.