The crossword solution for the term 'Dog of Nick and Nora' is ASTA, a four-letter word. ASTA was a wire-haired fox terrier who appeared in the 1934 film The Thin Man, starring William Powell and Myrna Loy as Nick and Nora Charles. ASTA was played by Skippy, a real-life dog actor who was owned by trainer Henry East. ASTA was a beloved character in the film and became a popular pet name in the years that followed.