筒

window envelope; billing envelope

rocket launcher

Japanese-style oblong, open end envelope

eel trap

cylindrical projection

multiple barrel model; multi-barrel model

Computing

barrel printer

extractor (rifle)

extractor mark (on a cartridge)

cylindrical chopsticks container

tube for shaking and dispensing lottery sticks

barrel of a gun

cardboard mailing tube; shipping tube

cartridge (for a firearm)

ejector tube; ejector housing (revolver)

return, postage-paid envelope

adhesive envelope

Photography

photographic zenith tube

padded envelope

Historical term

light torso armour opening at the right, originally used for infantry combat; dō-maru

Rare term

banker (gambling); bookmaker; person who runs a gambling den; person who rents out space for gambling and charges commission

Rare term

renting out space for gambling and charging a commission on the proceeds; person who rents out space for gambling

Rare term

blowgun; blowpipe