CC

CC is an email field that allows a person to send a copy of a message to one or more other addresses besides the main recipient listed in the "To" field. For example, you may email your boss about a work update and add three of your co-workers' emails in the CC field to send them copies of the email.

While people typically use CC as a noun (e.g., "Remember to fill out the CC"), people may also use it as a verb (e.g., "CC the rest of the group in your email as well"). The CC field may appear in different places in different email clients, but you will likely find it immediately below the "To" field at the top of an email and above or next to the "BCC" field.

StarCraft 2 (SC2) players use CC as shorthand for Command Center. The CC is the primary building in a Terran player's base, used to create worker units and process collected resources.

In the mid and late game, CCs can be upgraded to either an Orbital Command or a Planetary Fortress (PF). The Orbital Command upgrade optimizes a CC's production capabilities, while the PF upgrade turns a CC into a strong defensive unit.

CC stands for "credit card," a payment method offered by companies such as Visa, American Express, MasterCard, and Discover. People most often use the CC acronym when clarifying how they can pay for things, whether online or in real life.

While the idea of CCs dates back to at least the early 20th century, it wasn't until the 1980s and 90s that the larger public began adopting them. Then, online CC purchases skyrocketed as the Internet became commonplace in the 2000s. Nowadays, you can buy almost anything online with your CC.

Most CCs include a magnetic stripe or embedded chip read by a machine to verify and complete a purchase. Cards also include the name of the user or business, a unique string of digits to identify the user, the expiration date, and a card verification value (CVV).

Some online chat users use CC to stand for "I copy," which is another way of saying "I understand." This version of CC is used in response to requests or assertions, to let you know you've been heard and understood.

Typically, users who are using CC to mean "I copy" place the acronym at the beginning of their messages. While this usage of CC is uncommon, you may still encounter it while chatting with older users.

When you are hanging out and your friend asks what you are up to, you can reply with "CC," which means "casually chilling." CC is one of many slang terms for relaxing, with others being chill, chillax, veg, and moss.

The first "C" in the acronym may be a little overkill since not many people engage in "formal chilling," but it's helpful to be precise. Examples of casual chilling include laying on the couch binge-watching a show or hanging out at the beach reading a book.