delivery vs inflection

delivery and inflection both are nouns.

Word	Noun	Adjective	Verb	Adverb
delivery	Yes	No	No	No
inflection	Yes	No	No	No

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

Other hyponyms of delivery include address, catch, tongue, shibboleth, tone, tone of voice, elocution, prosody, modulation.

delivery (noun)	inflection (noun)
recovery or preservation from loss or danger	the patterns of stress and intonation in a language
the voluntary transfer of something (title or possession) from one party to another	a manner of speaking in which the loudness or pitch or tone of the voice is modified
the act of delivering a child	deviation from a straight or normal course
the act of throwing a baseball or softball by the pitcher towards home plate, which initiates play by giving the batter a chance to hit it	a change in the form of a word (usually by adding a suffix) to indicate a change in its grammatical function
the act of delivering or distributing something (as goods or mail)
your characteristic style or manner of expressing yourself orally
the event of giving birth