Domicile is a fancy word for the place where you live. Whether it's a mansion on 5th Avenue or a tee-pee in the desert, if you live in it, it's your domicile.The meaning of DOMICILE is a dwelling place : place of residence : home. How to use domicile in a sentence. Domicile refers to the place you call home permanently. Your domicile is important for legal purposes such as paying taxes, voting, and claiming benefits. 1. a person who resides in a place 2. Social welfare an occupant of a welfare agency home Former name: inmate 3. The place where a person lives. Synonym: dwelling formal.