CIV is an acronym used to refer to civil service or civilian. Synonyms for CIV include civilian, non-military, non-combatant, and government employee. Other synonyms for CIV can depend on the context in which it's being used. For example, in the medical field, CIV is an abbreviation for controlled intravenous therapy, and synonyms may include IV therapy or infusion therapy. In the field of law, CIV may be short for civil law, and synonyms may include common law, legal code, or legal system. The context in which the term CIV is used can help determine the appropriate synonyms to use.