Housebroken, a term commonly used to describe a pet that is trained to live indoors and use a specified area for relieving itself. Some synonyms for housebroken include trained, civilized, tamed, domesticated, and disciplined. Other alternatives include housetrained, well-behaved, and house-bred. These descriptions imply an animal that has learned to behave and follow a set of rules while living indoors. Similarly, cats are considered litter-trained or litter-box trained, while rabbits and guinea pigs are called litter-savvy. Overall, finding the right word to describe a well-trained pet living indoors is essential for communicating with veterinary professionals and potential adopters.