mew vs Larus canus

mew and Larus canus both are nouns.

Word	Noun	Adjective	Verb	Adverb
mew	Yes	No	Yes	No
Larus canus	Yes	No	No	No

As nouns, mew and Larus canus are synonyms defined as:

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

Other synonyms of mew include mew gull, sea mew.

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