A(n)________is referred to as an action of forcible detainer in most states.

In legal terms, eviction is the action taken to remove a tenant from a rental property when they fail to comply with the lease agreement or law. When a landlord initiates proceedings to reclaim possession of the property, it often involves a forcibly detaining the tenant—hence the term "forcible detainer." This process usually requires a court order and follows specific legal protocols to ensure that the tenant's rights are respected while allowing the landlord to regain their property.

The context of an escalation clause, termination, and assignment does not directly relate to the action of forcibly removing a tenant. An escalation clause refers to a provision in a lease or contract that allows for adjustments in rent based on certain factors, termination refers to ending a lease agreement, and assignment pertains to the transfer of lease rights from one tenant to another. These terms do not encapsulate the legal proceedings involved in forcibly detaining a tenant. Thus, eviction accurately represents the correct term in this context.