1, CN is the abbreviation of COSPLAYER NAME, which means the name of COSER. Every COSER has his own name. Usually, when COS works are released and publicized, such as the annual CHINA JOY large-scale comic exhibition, there will be many coser, and they all need to let everyone know their names.

2. Cetane number, which means the spontaneous combustion of diesel when it is burned in a diesel engine.

3. "CN" is the identification mark of domestic unified serial number.

4, cn, that is, Li Newton, which is commonly known as gram (gf).

Extended data:

Generally, it is marked at the beginning of cosplay works, and also at the end.

The general format is: xx (play the role) cn: xx (coser's name)

Every coser has its own CN. Coser's CN is generally signed when COS works are released and related operations are carried out to avoid infringement or unnecessary troubles. When reprinting coser's works, coser's cn will also be marked.