伎 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
わざ waza わざおぎ wazaogi
KUNYOMI 訓読み
ギ gi キ ki
Examples
柔道では力より技のほうが大切である。In judo, technique is more important than strength.一子相伝の技と言うわりには、彼の蹴りは大した事はないね。For a guy who was chosen by his father as the only son to be taught the secrets of this martial art, he doesn’t have much of a kick.