herald vs foretell

herald is a noun but foretell is not a noun.

Word	Noun	Adjective	Verb	Adverb
herald	Yes	No	Yes	No
foretell	No	No	Yes	No

As verbs, herald and foretell are synonyms defined as:

Other synonyms of herald include announce, annunciate, harbinger.

herald (noun)	foretell (noun)
something that precedes and indicates the approach of something or someone
(formal) a person who announces important news

herald (verb)	foretell (verb)
foreshadow or presage	make a prediction about; tell in advance
praise vociferously	indicate, as with a sign or an omen
greet enthusiastically or joyfully	foreshadow or presage