変 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.わる ka.waru か.わり ka.wari か.える ka.eru
KUNYOMI 訓読み
ヘン hen
Examples
そのオレンジは後味が変だった。The orange left a strange taste in my mouth.変なのー。That’s weird.変ですね。That’s strange.あんた変だよ。You’re weird.彼は時々変です。Sometimes he can be a strange guy.変な音が聞こえる。I hear a strange sound.変なこと言うなよ。Don’t talk rubbish.変な帽子かぶってるな。You’re wearing an odd cap, aren’t you?彼の名前は変な名前だ。His is a strange name.彼女は私を変な目で見た。She gave me a strange look.