What is another name for interior?

Another name for interior depends on whether you use it as noun or adjective. As noun meaning inside space, another name is inside, inner part, inner space, inner side, core, heart, center, inner room, and internal area. For example, interior of house can be called inside of house or inner part of house. As design term, another name is inner decor, internal design, or inside design. As adjective meaning located inside, another name is inner, internal, inside, inward, indoor, and innermost. For example, interior walls can be called inner walls or internal walls, interior designer can be called inner space designer but interior designer is standard. For figurative meaning of inner thoughts, another name is inner self, inner being, internal world, or psyche. In anatomy, interior can be called internal. In geography, interior can be called inland or hinterland. Opposite of interior is exterior. So most common other names are inside for noun and inner or internal for adjective. For example, you can say inner part instead of interior, or internal area instead of interior area, and people will understand you mean inside.