Both subletting and subleasing do mean the same thing. A tenant rents out the property they are temporarily renting to another tenant.Sublet and sublease are two different words for the same concept. The suffixes of each word, "let" and "lease," both mean to rent out a property. A sublet allows direct landlord communication with the subtenant, unlike a sublease, where the legal relationship is between the primary and subtenant. Sublet and sublease are generally two different words that mean exactly the same thing. For example, the words lease and let both mean renting out a property. In simple terms, sublet is for an entire rental property (e.g. , a studio) and sublease is for a portion of a rental property (e.g. Subletting involves renting out your apartment to someone else for a period of time while you are still responsible for the lease.