variant vs species

variant and species both are nouns.

Word	Noun	Adjective	Verb	Adverb
variant	Yes	Yes	No	No
species	Yes	No	No	No

variant (noun)	species (noun)
a variable quantity that is random	a specific kind of something
something a little different from others of the same type	(biology) taxonomic group whose members can interbreed
an event that departs from expectations
(biology) a group of organisms within a species that differ in trivial ways from similar groups

variant (adjective)	species (adjective)
differing from a norm or standard
exhibiting variation and change