What is another word for live-in?
Pronunciation: [lˈa͡ɪvˈɪn] (IPA) 
When it comes to describing a person who resides in the same dwelling as another person or family, there are several synonyms for the term "live-in." Some of the most common synonyms include lodger, boarder, roommate, housemate, tenant, cohabitant, and resident. The word "lodger" typically refers to someone who rents a room from another person or family, while "boarder" is typically used to describe someone who pays for meals in addition to rent. "Roommate" and "housemate" generally refer to individuals who live together and share living expenses. "Tenant" refers to someone who pays rent to reside in a dwelling, while "cohabitant" and "resident" refer to individuals who live together but may not be related or married.
