There are several synonyms used to describe a fancy dog. One of the most popular is a pedigreed dog. This refers to a dog that has been bred selectively to adhere to specific standards as defined by a recognized kennel club. Another synonym for a fancy dog is a purebred dog. These are dogs that come from a lineage of the same breed and often have a high price tag due to their lineage and breeding. Other synonyms include designer dogs, show dogs, and high-maintenance dogs. Overall, a fancy dog is one that has been bred and raised in a way that sets it apart from other dogs, often for competition or display purposes.