Ass and Bullhead

Ass noun - A sturdy and patient domestic mammal that is used especially to carry things.

Bullhead and ass are semantically related. In some cases you can replace term "Bullhead" with "Ass", this nouns are similar.

Bullhead noun - Freshwater sculpin with a large flattened bony-plated head with hornlike spines.

Ass and bullhead are semantically related. Sometimes you can replace term "Ass" with "Bullhead", this nouns are similar.