mew vs mew gull

mew and mew gull both are nouns.

Word	Noun	Adjective	Verb	Adverb
mew	Yes	No	Yes	No
mew gull	Yes	No	No	No

As nouns, mew and mew gull are synonyms defined as:

mew and mew gull: the common gull of Eurasia and northeastern North America

Other synonyms of mew include Larus canus, sea mew.

mew (noun)	mew gull (noun)
the common gull of Eurasia and northeastern North America	the common gull of Eurasia and northeastern North America
the sound made by a cat (or any sound resembling this)

mew (verb)	mew gull (verb)
cry like a cat
utter a high-pitched cry, as of seagulls