限 is one of the most commonly used Japanese kanji, and it also has a lot of special readings in addition to the standard onyomi and kunyomi readings.
ONYOMI 音読み
かぎ.る kagi.ru かぎ.り kagi.ri -かぎ.り -kagi.ri
KUNYOMI 訓読み
ゲン gen
Examples
彼は38歳なのに両親に頼りきりです。Though 38, he is still dependent on his parents.彼はそこに行ったきり2度と帰ってこなかった。He went there, never to return.彼は病気でずっと床についたきりだ。He has been confined to his bed with illness.彼は3年前に家を出たきり全然消息がない。He went away from home three years ago, and has never been heard of since.彼女は5年前に家を出たきりで、その後何の消息もありません。She left home five years ago, and has never been heard of since.