Archeozoic vs Archeozoic eon

Archeozoic and Archeozoic eon both are nouns.

Word	Noun	Adjective	Verb	Adverb
Archeozoic	Yes	No	No	No
Archeozoic eon	Yes	No	No	No

As nouns, Archeozoic and Archeozoic eon are synonyms defined as:

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

Archeozoic (noun)	Archeozoic eon (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