take it easy vs slow down

take it easy and slow down both are verbs.

Word	Noun	Adjective	Verb	Adverb
take it easy	No	No	Yes	No
slow down	No	No	Yes	No

As verbs, slow down is a hypernym of take it easy; that is, slow down is a word with a broader meaning than take it easy:

Other hypernyms of take it easy include decompress, loosen up, relax, unbend, unwind.

take it easy (verb)	slow down (verb)
settle into a comfortable sitting position	become less tense, rest, or take one's ease
	lose velocity; move more slowly
	become slow or slower
	reduce the speed of
	cause to proceed more slowly