<p><strong>Noun</strong></p><ul><li>a weapon consisting of a metal tube, with mechanical attachments, from which projectiles are shot by the force of an explosive; a piece of ordnance.</li><li>any portable firearm, such as a rifle, shotgun, or revolver.</li><li>a long-barreled cannon having a relatively flat trajectory.</li><li>any device for shooting something under pressure: I always thin the paint a bit before using it in a paint gun.</li><li>With a staple gun, you could put up these posters a lot faster.</li><li>any of various handheld devices used as a dispenser or applicator: We need to put a new roll of tape on the tape gun.</li><li>Be careful when handling the glue gun, as it has to be quite hot to melt the glue sticks.</li><li>Slang: a person whose profession is killing; professional killer: They got a hired gun to take out the rival drug dealer.</li><li>British: a member of a group of people hunting pheasants or other game birds.</li><li>electron gun.</li><li>Slang (especially in baseball): a player’s throwing arm.</li><li>guns: the biceps or triceps of the arms: After the workout he took a selfie, flexing his impressive guns.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) gunned, gunning: to shoot with a gun (often followed by down): The fighter pilot gunned down three enemy aircraft even after his own plane was damaged.</li><li>to cause (an engine, vehicle, aircraft, etc.) to increase in speed very quickly by increasing the supply of fuel: Don’t gun the engine before it warms up, especially on a cold day.</li></ul><p><strong>Verb</strong></p><ul><li>(used without object) gunned, gunning: to hunt with a gun: He was out gunning in the woods when he came across somebody else’s traps.</li><li>to shoot with a gun: I spent the afternoon gunning at the range with friends from my gun club.</li></ul><p><strong>Verb Phrase</strong></p><ul><li>to seek or pursue with intent to defeat, harm, or kill: The other team was gunning for our running back the whole time.</li><li>If you ratted on them, the gang will be out gunning for you.</li><li>to seek; try earnestly to obtain: He is gunning for a raise.</li></ul>