repulsion vs repugnance

repulsion and repugnance both are nouns.

Word	Noun	Adjective	Verb	Adverb
repulsion	Yes	No	No	No
repugnance	Yes	No	No	No

As nouns, repulsion and repugnance are synonyms defined as:

Other synonyms of repulsion include horror, revulsion.

repulsion (noun)	repugnance (noun)
the act of repulsing or repelling an attack; a successful defensive stand	intense aversion
intense aversion	the relation between propositions that cannot both be true at the same time
the force by which bodies repel one another