drop, raindrop / (medicine) intravenous drip

raindrop / (medicine) to give intravenous drip

rain, rainfall / a rainy weather / (figuratively) something falling like rain

落ちる: to fall

to fall / (computing) to go down (as when a computer or application becomes unresponsive) / (electrical engineering, of a circuit breaker) to trip / (informal) to fail an examination

rain

rain / (figuratively) something falling like rain / (figuratively) favor, blessing

(idiomatic) to keep a secret when asked about it, but let it slip inadvertently when chatting on another occasion

(idiomatic) find something so tasty that one's cheeks fall

(idiomatic) unconvincing; incomprehensible; not making sense