Anti-discrimination laws in the U.S. have exceptions for someone who rents a room in a landlord's own residence, but generally speaking, for other purposes, there is not a distinction in U.S. or Florida law.
People who stay at a place with the permission of the owner for a very brief period of time and not pursuant to a lease, such as someone who gains use of a particular seat in a movie theater pursuant to a purchased ticket, is, however, not a tenant with the full rights of a tenant, and is instead a licensee who does not have a property right to use that space, only a contract that can be terminated by the property owner or their agent at will, potentially with breach of contract damages if this is done without justification, but not with liability for violating a tenant's rights.
In some cases, someone whose housing, at least part of the time, is for the convenience of the employer, like a medical resident who uses a sleeping room at a hospital, or a member of the crew of a ship who sleeps on the ship incident to their duties, may have reduced rights relative to housing when their employment is terminated for cause, although this is only sometimes clearly enunciated in statutes or case law and the law would not be terribly consistent in this area.