The term "merc" has multiple meanings, depending on the context. Here are some of the most common definitions:

• Mercenary: A person hired to fight for a foreign army or carry out combat missions, but who is not part of an official organization like the military or CIA.

• Mercury: A former division of Ford Motor Company.

• Chicago Mercantile Exchange: A financial exchange where various financial products are traded.

• Nickname: A shortened form of the name "Mercedes".

• Trend indicator: A person or thing that shows the existence or direction of a trend.

• Moderate or small amount: A slang term for a moderate or small amount of something.

Its important to note that the meaning of "merc" can vary depending on the context in which it is used.