cn
Translingual
Symbol
cn
- (mathematics) elliptic cosine
Khoekhoe
Letter
cn (upper case Cn)
- (obsolete, Tindall orthography) A letter of the Khoekhoe alphabet; modern ǀn.
Polish
Particle
cn
- (text messaging, Internet slang) abbreviation of co nie
Romanian
Pronoun
cn
- (Internet slang, text messaging) abbreviation of cine (“who”)