Cc is just another way of saying credit card
Mostly used by scammers

People who have big fingers on messenger mistyping “xx” for “cc”

Closed captioning (CC) and subtitling are both processes of displaying text on a television, video screen, or other visual display to provide additional or interpretive information.

A term for a band members girlfriend/partner who causes band beef and ultimately leads to the member leaving the band.

When used in the context of Geometry Dash, this abbreviation can stand for Cosmic Cyclone, ChrisCredible, Creator Contest, or Cataclysm.

Cc! It’s a diminutive for “Content creator”

A common abbreviation of "carbon copy".

A carbon copy, in email terms, is sending an exact copy of an email (hence "carbon copy") to another person besides the main recipient(s). It differs from simply forwarding or putting another person in the "to" section in that it indicates they are simply passive readers, and not the main subjects intended to respond.

The term stems from when a sheet of carbon was placed between a document and a blank piece of paper. A pen or pencil was pressed down on the fresh sheet of paper to make an exact copy of the original piece of writing. Now it is simply used metaphorically.