The term 'Little Dog, for Short' can be represented by three different crossword solutions: POM (3 letters), PEKE (4 letters), and XXX (3 letters). POM is an abbreviation for the breed of dog known as a Pomeranian, which is a small, fluffy breed of dog. PEKE is an abbreviation for the breed of dog known as a Pekingese, which is a small, long-haired breed of dog. Lastly, XXX is an abbreviation for the breed of dog known as a Chihuahua, which is a small, toy breed of dog.