The word "客房" is formed by directly combining two conceptual ideas represented by individual characters. The first character, "客" (kè), means "guest" or "visitor". The second character, "房" (fáng), means "room". Their combination does not imply ownership (like "guest's room") but rather designates function; it is a "guest room" or a "room for guests", conceptually fusing the purpose (accommodating guests) with the physical space (a room) to create the single, unified notion of a guest chamber, typically in a hotel or guesthouse.