Beluga and Grampus

Beluga noun - Valuable source of caviar and isinglass; found in Black and Caspian seas.

Grampus and beluga are semantically related in cetacean mammal topic. In some cases you can use "Grampus" instead a noun "Beluga", when it comes to topics like aquatic mammal.

Grampus noun - Predatory black-and-white toothed whale with large dorsal fin; common in cold seas.

Beluga and grampus are semantically related in cetacean mammal topic. You can use "Beluga" instead a noun "Grampus", if it concerns topics such as aquatic mammal.