regeneration vs re-formation

regeneration and re-formation both are nouns.

Word	Noun	Adjective	Verb	Adverb
regeneration	Yes	No	No	No
re-formation	Yes	No	No	No

As nouns, regeneration and re-formation are synonyms defined as:

regeneration and re-formation: forming again (especially with improvements or removal of defects); renewing and reconstituting

regeneration (noun)	re-formation (noun)
the activity of spiritual or physical renewal	forming again (especially with improvements or removal of defects); renewing and reconstituting
forming again (especially with improvements or removal of defects); renewing and reconstituting
(biology) growth anew of lost tissue or destroyed parts or organs
feedback in phase with (augmenting) the input