curdle vs spoil

curdle is not a noun while spoil is a noun.

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

As verbs, spoil is a hypernym of curdle; that is, spoil is a word with a broader meaning than curdle:

Other hypernyms of curdle include go bad.

curdle (noun)	spoil (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)

curdle (verb)	spoil (verb)
turn into curds	become unfit for consumption or use
turn from a liquid to a solid mass	alter from the original
go bad or sour	make imperfect
	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