lotion vs after-shave

lotion and after-shave both are nouns.

Word	Noun	Adjective	Verb	Adverb
lotion	Yes	No	No	No
after-shave	Yes	No	No	No

As nouns, after-shave is a hyponym of lotion; that is, after-shave is a word with a more specific, narrower meaning than lotion:

Other hyponyms of lotion include after-shave lotion, body lotion, hand lotion, toner.

lotion (noun)	after-shave (noun)
any of various cosmetic preparations that are applied to the skin	a fragrant lotion for a man's face after shaving
liquid preparation having a soothing or antiseptic or medicinal action when applied to the skin