ichidan verb / intransitive verb:

• 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) ➜ 狐が落ちる【きつねがおちる】
• 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.) ➜ 恋に落ちる【こいにおちる】・眠りに落ちる【ねむりにおちる】
• to swoon (judo)
• to consent; to understand ➜ 腑に落ちない【ふにおちない】
• to crash; to freeze - IT term
• to die - of animals
• to move to the depths - of fish when it gets cold