delivery vs serving

delivery and serving both are nouns.

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

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

delivery: the act of delivering or distributing something (as goods or mail)
serving: the act of delivering a writ or summons upon someone

Other hyponyms of delivery include airdrop, consignment, handing over, passage, post, service, service of process.

delivery (noun)	serving (noun)
recovery or preservation from loss or danger	the act of delivering a writ or summons upon someone
the voluntary transfer of something (title or possession) from one party to another	an individual quantity of food or drink taken as part of a meal
the act of delivering a child
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
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