fool vs lead astray

fool is a noun but lead astray is not a noun.

Word	Noun	Adjective	Verb	Adverb
fool	Yes	No	Yes	No
lead astray	No	No	Yes	No

As verbs, lead astray is a hypernym of fool; that is, lead astray is a word with a broader meaning than fool:

Other hypernyms of fool include betray, deceive.

fool (noun)	lead astray (noun)
a person who lacks good judgment
a person who is gullible and easy to take advantage of
a professional clown employed to entertain a king or nobleman in the Middle Ages

fool (verb)	lead astray (verb)
indulge in horseplay	cause someone to believe an untruth
fool or hoax	lead someone in the wrong direction or give someone wrong directions
spend frivolously and unwisely	teach immoral behavior to
make a fool or dupe of