Archean vs Archaeozoic aeon

Archean and Archaeozoic aeon both are nouns.

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

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

Archean and Archaeozoic aeon: 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 include Archaeozoic, Archean aeon, Archean eon, Archeozoic, Archeozoic eon.

Archean (noun)	Archaeozoic aeon (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