shaving vs epilation

shaving and epilation both are nouns.

Word	Noun	Adjective	Verb	Adverb
shaving	Yes	No	No	No
epilation	Yes	No	No	No

As nouns, epilation is a hypernym of shaving; that is, epilation is a word with a broader meaning than shaving:

Other hypernyms of shaving include depilation.

shaving (noun)	epilation (noun)
the act of removing hair with a razor	the act of removing hair (as from an animal skin)
the act of brushing against while passing	loss of hair; the result of removing hair
a thin fragment or slice (especially of wood) that has been shaved from something