cero vs Scomberomorus cavalla

cero and Scomberomorus cavalla both are nouns.

Word	Noun	Adjective	Verb	Adverb
cero	Yes	No	No	No
Scomberomorus cavalla	Yes	No	No	No

As nouns, cero and Scomberomorus cavalla are synonyms defined as:

cero and Scomberomorus cavalla: large mackerel with long pointed snout; important food and game fish of the eastern Atlantic coast southward to Brazil

Other synonyms of cero include cavalla, king mackerel.

cero (noun)	Scomberomorus cavalla (noun)
large edible mackerel of temperate United States coastal Atlantic waters	large mackerel with long pointed snout; important food and game fish of the eastern Atlantic coast southward to Brazil
large mackerel with long pointed snout; important food and game fish of the eastern Atlantic coast southward to Brazil