A device for projecting a hard object very forcefully; a firearm or cannon.

“Guns were considered improvements of crossbows and catapults.”

A device operated by a trigger and acting in a manner similar to a firearm.

“There are some guns that are not designed for killing.”

A long surfboard designed for surfing big waves (not the same as a longboard, a gun has a pointed nose and is generally a little narrower).

(with “down”) To shoot someone or something, usually with a firearm.

“He gunned down the hitmen.”

To speed something up.

“He gunned the engine.”

To offer vigorous support to a person or cause.

“He’s gunning for you.”