The crossword solutions for the term 'Haddock Relatives' are CODS. Cods are a type of fish that belong to the Gadidae family, which also includes haddock. They are found in the North Atlantic and North Pacific oceans, and are an important commercial species. Cods are characterized by their large mouths and two barbel-like whiskers on their chin. They can grow up to 1.5 meters in length and weigh up to 40 kilograms.