Finfish is a term commonly used to refer to fish with fins and scales which are suitable for human consumption. However, there are several synonyms for this word that are often used in different regions and cultures. A few examples of finfish synonym include "white fish", which refers to any fish with white flesh such as cod, haddock, or halibut. "Flatfish" is also a synonym that's used to describe fish like sole, flounder or plaice, which have a flattened body shape. Other alternative terms include "round fish", "sea fish", and "ocean fish" which are all used interchangeably to describe species like tuna, salmon, swordfish, and many more.