Definition: A Bcc (blind carbon copy; also BCC) is a copy of an email message sent to a recipient whose email address does not appear in the message.
This is in contrast to To and Cc recipients, whose addresses do appear in the respective header lines. Every recipient of the message can see all the To and Cc recipients, but does not know about Bcc recipients.
Also Known As: Blind carbon copy
Alternate Spelling: BCC
Example: I bcced (also: BCCed, bcc'd and bcc:ed) Ron on this message, but I think it's better Mary doesn't know.
(Updated January 2014)