Archean eon vs Archaeozoic

Archean eon and Archaeozoic both are nouns.

Word	Noun	Adjective	Verb	Adverb
Archean eon	Yes	No	No	No
Archaeozoic	Yes	No	No	No

As nouns, Archean eon and Archaeozoic are synonyms defined as:

Archean eon and Archaeozoic: the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life

Other synonyms of Archean eon include Archaeozoic aeon, Archean, Archean aeon, Archeozoic, Archeozoic eon.

Archean eon (noun)	Archaeozoic (noun)
the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life	the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life