CU

Proper noun

 * 1) Christian Union (bodies of Christian students in UK schools, colleges and universities)
 * 2)  in Bangladesh
 * 3)  in Thailand

Adjective

 * 1) cubic in a variety of English customary units (examples: cubic inch, cubic foot).

Phrase

 * 1)  in stamp descriptions, commercially used.
 * 2)  phonetic abbreviation of see you.

Etymology
From.

Proper noun

 * 1)  ChristianUnion, a conservative Christian social political party in the Netherlands

Usage notes
This abbreviation mainly occurs as a label in graphs and is seldom used in running text.