flourish vs melody

flourish and melody both are nouns.

Word	Noun	Adjective	Verb	Adverb
flourish	Yes	No	Yes	No
melody	Yes	No	No	No

As nouns, melody is a hypernym of flourish; that is, melody is a word with a broader meaning than flourish:

Other hypernyms of flourish include air, line, melodic line, melodic phrase, strain, tune.

flourish (noun)	melody (noun)
the act of waving	the perception of pleasant arrangements of musical notes
a display of ornamental speech or language	a succession of notes forming a distinctive sequence
a showy gesture
(music) a short lively tune played on brass instruments
an ornamental embellishment in writing

flourish (verb)	melody (verb)
grow vigorously
move or swing back and forth
make steady progress; be at the high point in one's career or reach a high point in historical significance or importance