- a person who is not on active duty with a military, naval, police, or fire fighting organization.
- anyone regarded by members of a profession, interest group, society, etc., as not belonging; nonprofessional; outsider: We need a producer to run the movie studio, not some civilian from the business world.
- a person versed in or studying Roman or civil law.
- of, pertaining to, formed by, or administered by civilians.
- a person whose primary occupation is civil or nonmilitary
- (as modifier)