spoil vs curdle

spoil is a noun but curdle is not a noun.

Word	Noun	Adjective	Verb	Adverb
spoil	Yes	No	Yes	No
curdle	No	No	Yes	No

As verbs, curdle is a hyponym of spoil; that is, curdle is a word with a more specific, narrower meaning than spoil:

Other hyponyms of spoil include addle.

spoil (noun)	curdle (noun)
the act of stripping and taking by force
the act of spoiling something by causing damage to it
(usually plural) valuables taken by violence (especially in war)

spoil (verb)	curdle (verb)
become unfit for consumption or use	turn into curds
alter from the original	turn from a liquid to a solid mass
make imperfect	go bad or sour
destroy and strip of its possession
have a strong desire or urge to do something
hinder or prevent (the efforts, plans, or desires) of
treat with excessive indulgence
make a mess of, destroy or ruin