prosody vs metre

prosody and metre both are nouns.

Word	Noun	Adjective	Verb	Adverb
prosody	Yes	No	No	No
metre	Yes	No	No	No

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

Other hyponyms of prosody include beat, cadence, measure, meter, sprung rhythm.

prosody (noun)	metre (noun)
the study of poetic meter and the art of versification	rhythm as given by division into parts of equal duration
the patterns of stress and intonation in a language	(prosody) the accent in a metrical foot of verse
(prosody) a system of versification	the basic unit of length adopted under the Systeme International d'Unites (approximately 1.094 yards)