Buy-to-let is a commonly used term in the property market, but there are several other synonyms that can be used to describe this type of investment. A popular term is rental property investment, which refers to the process of purchasing a property with the intention of renting it out. Other related terms include landlord investment, investor landlord, and rental property ownership. Each of these terms highlights the key concept of buying a property with the aim of generating rental income. Interesting alternatives are also real estate investment and revenue property ownership, which are useful in distinguishing the investment from other types of properties in the overall property market.