From Longman Dictionary of Contemporary EnglishUU1, u /juː/ (plural U’s, u’s) noun 1 [countable, uncountable]SLA the 21st letter of the English alphabet2 [singular, uncountable] British English used to describe a film that has been officially approved as suitable for people of any age → PG SYN G American English3 [countable] British English a mark given to a student’s work to show that it is extremely bad → U-boat, U-turn
Examples from the Corpus
U• Then, from U, some one else sets off for Lamri and for Lorpa.• Some one hears it mentioned in the Bazaar and runs to U with a warning.UU2 pronoun written informal a way of writing ‘you’, used especially in emails and text messages I love U!U.U., U /juː/ American English informalSEC an abbreviation of university Indiana U 