U, u
noun uk/juː/ us/juː/ Us, U's or u's
(LETTER)
[ C or U ]（英语字母表的第21个字母）
the 21st letter of the English alphabet
(FILM)
[ C or U ]（英国）电影 U 级，适合各年龄段的人观看（universal的缩写）
abbreviation for universal : in the UK, a film or a symbol for a film that is considered suitable for children of any age
U, u
adjective uk/juː/ us/juː/
(FILM)
（英国）电影 U 级的，适合各年龄段的人观看的（universal的缩写）
abbreviation for universal : used in the UK to refer to a film that is considered suitable for children of any age
(UPPER-CLASS)
UK old-fashioned（指举止和说话腔调）是上流阶级的
(of behaviour or ways of speaking) acceptable to or expected to be used by people of high social class
Compare: non-U