墜落 （ツイラク） fall, crash (e.g. aircraft)

墜死 （ツイシ） falling to one's death

人気失墜 （ニンキシッツイ） decline in public favor, fall in popularity

落ちる （おちる） to fall down, to drop, to fall (e.g. rain), to sink (e.g. sun or moon), to fall onto (e.g. light or one's gaze), to be used in a certain place (e.g. money), to be omitted, to be missing, to decrease, to sink, to fail (e.g. exam or class), to lose (contest, election, etc.), to crash, to degenerate, to degrade, to fall behind, to become indecent (of a conversation), to be ruined, to go under, to fade, to come out (e.g. a stain), to come off (e.g. makeup), to be removed (e.g. illness, possessing spirit, name on a list), to fall (into someone's hands), to become someone's possession, to fall (into a trap), to fall (for a trick), to give in, to give up, to confess, to flee, to fall, to be defeated, to surrender, to come to (in the end), to end in, to fall (in love, asleep, etc.), to swoon (judo), to consent, to understand, to go down (of a website, server, etc.), to crash, to log out (of an online game, chat room, etc.), to drop out, to leave, to go offline, to die, to move to the depths

落つ （おつ） to fall down, to drop, to fall (e.g. rain), to sink (e.g. sun or moon), to fall onto (e.g. light or one's gaze), to be omitted, to be missing, to crash, to degenerate, to degrade, to fall behind, to be removed (e.g. illness, possessing spirit, name on a list), to fall (into someone's hands), to become someone's possession, to fall, to be defeated, to surrender