grenade /ɡɹəˈneɪd/noun 4verb 2forms 3phrases 1 noun4 •A small explosive device, designed to be thrown by hand or launched using a rifle, grenade launcher, or rocket. •(slang) An unattractive girl. •A charge similar to a fireball, and made of a disc-shaped bomb shell, but with only one set of flames at the top. •(no longer used) A pomegranate. verb2 •To use grenade(s) upon.Some of the infantry got pinned down by it, and from cover kept up the battle by grenading rubble piles or any other likely spots ahead of them. — 2001 •(slang) Of an engine: to be violently wrecked so that the internal components burst out. formsgrenaded · grenading · grenades Phrases with grenade fall on a grenadeTo sacrifice oneself for the sake of others.