撃墜[gekitsui] shooting down (aircraft)
失墜[shittsui] abasement
墜死[tsuishi] falling to one's death
墜落[tsuiraku] falling
墜ちる[ochiru] to fall down

墜落事故[tsuirakujiko] a plane crash
墜つ[otsu] to fall down
人気失墜[ninkishittsui] decline in public favor
墜子[iwa] weight (of a fishing net)
巨星墜つ[kyoseiotsu] death of a great man

鬼利死丹[kirishitan] early Japanese Christianity (from the later Muromachi period)
あっ死[asshi] crushing to death
安楽死[anrakushi] euthanasia
一死[isshi] dying
一死後[isshigo] after one out (in Baseball)

一死報国[isshihoukoku] dying for one's country
煙死[enshi] death by smoke suffocation
横死[oushi] violent (tragic or accidental) death
仮死[kashi] asphyxiation
過労死[karoushi] death from overwork and mental stress