二、指物

       His elder brother died of Yellow Jack in the West Indies.

       （Yellow Jack指醫學上的“黃熱病”）

       the Union Jack

       英聯合王國國旗

       a Jack of straw

       稻草人

       to make one's Jack

       賺很多錢

       三、諺語中指人或物

       All work and no play makes Jack a dull boy.

       只工作不玩耍，聰明的孩子也會變傻。

       All shall be well, Jack shall have Jill.

       有情人終成眷屬。

       Jack would be a gentleman if he had money.

       低微的人有錢也會成為紳士。

       Jack is as good as his master.

       伙計不比老板差，卑賤者未必不如高貴者。

       Jacks are common to all that will play.

       樂器對于所有想要彈奏的人都一樣。（Jacks是古時類似鋼琴的彈奏樂器。）

（來源：英語學習網）