An eviction is when a renter or tenant is forced to move out by a property owner. If you don't pay rent for months, you run the risk of eviction.
It's most often a landlord who brings an eviction against someone who's renting an apartment or house. In most states, an eviction follows some kind of legal action — the landlord usually has to prove that the tenant hasn't paid rent or isn't following the terms of the lease. The Late Latin root of the word eviction is evictionem, "recovery of property by judicial decision."