suborder Oscines vs Passeres

suborder Oscines and Passeres both are nouns.

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

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

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

Other synonyms of suborder Oscines include Oscines, suborder Passeres.

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