ichidan verb, transitive verb
trap; frame; lure into a difficult situation
Used for deliberately putting someone in a bad situation through deception or scheming. Common in contexts of framing for a crime, tricking into a trap, or causing turmoil.
彼は同僚を罠に陥れて失脚させた。
He trapped his colleague and caused his downfall.
An innocent person was framed for the crime.
ichidan verb, transitive verb
capture; take; reduce (a fortress)
Historical or literary use for capturing a castle, fortress, or stronghold. Not used for modern military contexts.
敵軍は城を陥れることに成功した。
The enemy forces succeeded in capturing the castle.
ichidan verb, transitive verb
drop into; put into
Only when written 落とし入れる
Original literal meaning: to drop or place something into a container, hole, or space. Now rare and mostly replaced by 落とす or 入れる. Usually written as 落とし入れる.
手紙をポストに落とし入れた。
I dropped the letter into the mailbox.