Other forms: civil liberties
A civil liberty is an individual right that limits how the government can treat its citizens. In the U.S., civil liberties include the right to privacy and freedom of speech.
In the United States, civil liberties are the specific Constitutional rights that are mentioned in the Bill of Rights, like freedom of religion and freedom of the press. In a more general sense, civil liberties are basic rights all people should have, particularly freedom of speech and movement, as long as they're not harming others. The Latin root of civil is civilis, "relating to a society."