caveat vs caution

caveat and caution both are nouns.

Word	Noun	Adjective	Verb	Adverb
caveat	Yes	No	No	No
caution	Yes	No	Yes	No

As nouns, caveat and caution are synonyms defined as:

caveat (noun)	caution (noun)
a warning against certain acts	the trait of being cautious; being attentive to possible danger
(law) a formal notice filed with a court or officer to suspend a proceeding until filer is given a hearing	the trait of being circumspect and prudent
	judiciousness in avoiding harm or danger
	a warning against certain acts

caveat (verb)	caution (verb)
	warn strongly; put on guard