odour vs perfume

odour and perfume both are nouns.

Word	Noun	Adjective	Verb	Adverb
odour	Yes	No	No	No
perfume	Yes	No	Yes	No

As nouns, perfume is a hyponym of odour; that is, perfume is a word with a more specific, narrower meaning than odour:

odour: the sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous form
perfume: a distinctive odor that is pleasant

Other hyponyms of odour include scent, aroma, fragrance, scent, fetor, foetor, malodor, malodour, mephitis, reek, stench, stink, acridity, stank.

odour (noun)	perfume (noun)
any property detected by the olfactory system	a toiletry that emits and diffuses a fragrant odor
the sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous form	a distinctive odor that is pleasant

odour (verb)	perfume (verb)
	apply perfume to
	fill or impregnate with an odor