gunnel vs bracketed blenny

gunnel and bracketed blenny both are nouns.

Word	Noun	Adjective	Verb	Adverb
gunnel	Yes	No	No	No
bracketed blenny	Yes	No	No	No

As nouns, gunnel and bracketed blenny are synonyms defined as:

gunnel and bracketed blenny: small eellike fishes common in shallow waters of the northern Atlantic

gunnel (noun)	bracketed blenny (noun)
small eellike fishes common in shallow waters of the northern Atlantic	small eellike fishes common in shallow waters of the northern Atlantic
wale at the top of the side of boat; topmost planking of a wooden vessel