grey mullet vs gray mullet

grey mullet and gray mullet both are nouns.

Word	Noun	Adjective	Verb	Adverb
grey mullet	Yes	No	No	No
gray mullet	Yes	No	No	No

As nouns, grey mullet and gray mullet are synonyms defined as:

grey mullet and gray mullet: freshwater or coastal food fishes a spindle-shaped body; found worldwide

Other synonyms of grey mullet include mullet.

As nouns, grey mullet and gray mullet are synonyms defined as:

grey mullet and gray mullet: highly valued lean flesh of marine or freshwater mullet

Other synonyms of grey mullet include mullet.

grey mullet (noun)	gray mullet (noun)
freshwater or coastal food fishes a spindle-shaped body; found worldwide	freshwater or coastal food fishes a spindle-shaped body; found worldwide
highly valued lean flesh of marine or freshwater mullet	highly valued lean flesh of marine or freshwater mullet