1. 巨大的；特大的；极其重要的
    Something that is described as giant is much larger or more important than most others of its kind.

    e.g. ...Italy's giant car maker, Fiat.
           意大利汽车生产巨头菲亚特公司
    e.g. ...a giant oak table.
           巨大的橡木桌

2. 大公司；大企业；大国
    Giant is often used to refer to any large, successful business organization or country.

    e.g. ...Japanese electronics giant Sony.
           日本电子业巨头索尼公司
    e.g. ...one of Germany's industrial giants, Daimler-Benz.
           德国工业巨头之一，戴姆勒—奔驰公司

3. （尤指古代传说中虚构的）巨人
    A giant is an imaginary person who is very big and strong, especially one mentioned in old stories.

    e.g. ...a Nordic saga of giants.
           北欧的巨人传奇

4. 伟人；巨子；高大健壮的人
    You can refer to someone, especially a man, as a giant, if they seem important or powerful or if they are big and strong.

    e.g. He has enormous charisma. He is a giant of a man...
           他有超凡的个人魅力，是个伟人。
    e.g. The biggest man in the patrol, a giant of a man, lifted Mattie on to his shoulders.
           巡逻队中块头最大的那个彪形大汉将玛蒂举起来放到自己的肩上。

5. 卓越人物；大师；才华超群的人
    You can refer to someone such as a famous musician or writer as a giant, if they are regarded as one of the most important or successful people in their field.

    e.g. ...the giant of opera, Luciano Pavarotti...
           歌剧界巨擘卢恰诺·帕瓦罗蒂
    e.g. He was without question one of the giants of Japanese literature.
           毋庸置疑，他是日本的文学巨匠之一。