Main house is a term frequently used to describe the primary residence on a property. However, there are many synonyms for this term that can be used depending on the context of the situation. Some synonyms for main house include primary residence, family home, main dwelling, principal house, main residence, central home, chief residence, and top house. Depending on the location or reason for use, different terms may be more appropriate than others. For instance, a real estate listing may use the term primary residence, while a family conversation may refer to the main house as the family home or central home. Ultimately, the choice of term comes down to personal preference and context.