user
/ˈjuːzə(r)/noun
1
- a person who uses or operates something, especially a computer or other machine使用者, 用户。
1.1
- a person who takes illegal drugs; an addict吸毒者; 瘾君子。
1.2
- a person who manipulates others for their own gain善于利用人的人：
he was a gifted user of other people.
他是天生很会利用他人的人。
2
- mass noun Law the continued use or enjoyment of a right【律】使用权; 权利继续享有。