ratchet down vs pass on

ratchet down and pass on both are verbs.

Word	Noun	Adjective	Verb	Adverb
ratchet down	No	No	Yes	No
pass on	No	No	Yes	No

As verbs, pass on is a hypernym of ratchet down; that is, pass on is a word with a broader meaning than ratchet down:

Other hypernyms of ratchet down include advance, go on, march on, move on, progress.

ratchet down (verb)	pass on (verb)
move by degrees in one direction only	transmit information
	cause to be distributed
	move forward, also in the metaphorical sense
	give to or transfer possession of
	place into the hands or custody of
	transmit (knowledge or skills)
	refer to another person for decision or judgment