Noun

• S: (n) bomb shelter (bomb_shelter%1:06:00::), air-raid shelter (air-raid_shelter%1:06:00::), bombproof (bombproof%1:06:00::) (a chamber (often underground) reinforced against bombing and provided with food and living facilities; used during air raids)

Verb

• S: (v) bombproof (bombproof%2:30:00::) (make safe against bombings)

Adjective

• S: (adj) bombproof (bombproof%3:00:00:invulnerable:00), shellproof (shellproof%3:00:00:invulnerable:00) (able to resist the explosive force of bombs and shells) "bombproof shelter"