1 confine sb/sth (in/to sth) to keep a person or animal in a particular, usually small, place （把人或动物）关起来，囚禁，禁闭（于狭小的地方）: The prisoners are confined to their cells for long periods at a time. 犯人每次都被长期关在囚室里。

2 confine sb/sth/yourself to sth to stay within the limits of sth 限制于（某范围内）: Please confine your questions to the topic we are discussing. 提出问题时不要离题。