- the 21st letter of the English alphabet英语字母表的第 21 个字母
- ‘Under’ begins with (a) U/‘U’.under 一词以字母 u 开头。
see also U-boat, U-turn
universalU 类影片(适合所有观众)
(the label of a film that is suitable for anyone including children)- Aladdin, certificate UU 类电影《阿拉丁》
compare 18, PG, 12Topics Film and theatrec2
- the symbol for the chemical element Uranium