gat (n.)
- aperture
- automatic
- blowgun
- blowpipe
- cavity
- chasm
- check
- clearing
- cleft
- crack
- disclosure
- fenestra
- firearm
- fistula
- flamethrower
- fontanel
- foramen
- gap
- gape
- gulf
- gun
- handgun
- heater
- hiatus
- hole
- hollow
- inlet
- interval
- lacuna
- leak
- musket
- opening
- orifice
- outlet
- passageway
- piece
- pistol
- pore
- repeater
- revolver
- rifle
- rod
- shotgun
- six-gun
- six-shooter
- slot
- space
- split
- stoma
- yawn