What is cc
Last updated: April 1, 2026
Key Facts
- CC stands for 'carbon copy' in email communication, the most common usage
- CC recipients receive the message and their addresses are visible to all recipients
- CC differs from BCC (blind carbon copy) where recipients are hidden from other recipients
- CC can also mean closed captions, credit card, or cubic centimeters depending on context
- The term originates from carbon paper used with typewriters to create duplicate copies
CC in Email
In email communication, CC stands for 'carbon copy'. The CC field allows you to send a copy of your email message to recipients you specify, with all email recipients able to see the addresses of those who were CC'd. This is useful when you want additional people to be informed about a message or conversation, but they are not the primary recipients indicated in the 'To' field.
How CC Works
When you compose an email, the 'To' field contains the primary recipients who are the main subjects of the message. The 'CC' field contains secondary recipients who should be informed but may not require direct action. All recipients of the email (both 'To' and 'CC') can see everyone else's email addresses in the message header. This transparency is an important distinction that separates CC from other email functions and affects how you should use it in professional and personal communication.
CC vs TO vs BCC
Understanding the differences between these three email fields is crucial for proper email etiquette:
- TO: Contains primary recipients who are the main focus of the message and typically require action or direct response
- CC: Contains secondary recipients who need to be informed but are not the primary focus; their addresses are visible to all recipients
- BCC: Contains recipients whose addresses are hidden from all other recipients; used when you want to include someone without others knowing
Choosing the correct field helps establish clear communication expectations and shows respect for recipients' time and priorities.
Other Meanings of CC
While CC most commonly refers to 'carbon copy' in email, the abbreviation has several other meanings depending on context:
- Closed Captions - Text representation of audio content for accessibility
- Credit Card - A financial payment instrument
- Cubic Centimeters - A unit of volume measurement, often used for engine displacement
- Creative Commons - A copyright licensing system
- Country Code - In domain names and telephone numbers
History of the Term
The term 'carbon copy' originates from the era of typewriters and physical correspondence. Before photocopiers and email, people would place carbon paper between sheets of paper when typing. When pressure was applied while typing, the carbon paper would create a duplicate copy of the document on the sheet below. This duplicate was called a 'carbon copy.' The term has persisted into the digital age, even though the physical process is no longer used, because email functions serve a similar purpose of creating informational copies for multiple recipients.
Related Questions
When should you use CC vs BCC in email?
Use CC when recipients should be aware of who else is receiving the email, such as in professional communications for transparency. Use BCC when you want to protect privacy, send bulk emails, or include someone discreetly without others knowing.
Is it unprofessional to CC too many people?
Yes, excessive CC usage is generally considered poor email etiquette. CC only relevant people who genuinely need the information. Over-CCing can clutter inboxes and reduce the importance of critical communications.
Can you remove someone from the CC list after sending an email?
No, you cannot remove someone from an already-sent email's CC list. You can only recall or retract the entire email in some email clients, or send a follow-up email explaining the change in recipients.
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Sources
- Wikipedia - Carbon CopyCC-BY-SA-4.0
- Britannica - EmailCC-BY-SA-4.0