suborder Oscines vs suborder Passeres

suborder Oscines and suborder Passeres both are nouns.

Word	Noun	Adjective	Verb	Adverb
suborder Oscines	Yes	No	No	No
suborder Passeres	Yes	No	No	No

As nouns, suborder Oscines and suborder Passeres are synonyms defined as:

suborder Oscines and suborder Passeres: two names for the suborder of typical songbirds

Other synonyms of suborder Oscines include Oscines, Passeres.

suborder Oscines (noun)	suborder Passeres (noun)
two names for the suborder of typical songbirds	two names for the suborder of typical songbirds