jackKK [ˈdʒæk] ｜ /ˈdʒæk/
GEPT 中高級
A2noun
a male given name commonly used in English-speaking countries
Jack introduced himself at the party and everyone found his name both friendly and approachable.
傑克（男子名）
A2noun
a device used to lift heavy objects
John used the jack to lift his car and change the flat tire.
千斤頂；起重器
A2noun
a playing card with a face value of 11
During the game of poker, I was delighted to receive a jack, which significantly increased my chances of winning the round.
A2noun
a man who serves as a sailor
Jack climbed the rigging to unfurl the sails with the skill of an experienced sailor.