bouquet vs odour

bouquet and odour both are nouns.

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

As nouns, odour is a hypernym of bouquet; that is, odour is a word with a broader meaning than bouquet:

Other hypernyms of bouquet include aroma, odor, olfactory property, scent, smell.

bouquet (noun)	odour (noun)
an arrangement of flowers that is usually given as a present	any property detected by the olfactory system
a pleasingly sweet olfactory property	the sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous form