leave vs pass on

leave is a noun but pass on is not a noun.

Word	Noun	Adjective	Verb	Adverb
leave	Yes	No	Yes	No
pass on	No	No	Yes	No

As verbs, pass on is a hyponym of leave; that is, pass on is a word with a more specific, narrower meaning than leave:

Other hyponyms of leave include devise, remember, entail, fee-tail.

As verbs, leave and pass on are synonyms defined as:

Other synonyms of leave include give, impart.

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

Other hypernyms of leave include give, hand, pass, reach, turn over.

leave (noun)	pass on (noun)
the act of departing politely
permission to do something
the period of time during which you are absent from work or duty

leave (verb)	pass on (verb)
leave unchanged or undisturbed or refrain from taking	transmit information
be survived by after one's death	cause to be distributed
leave behind unintentionally	move forward, also in the metaphorical sense
go and leave behind, either intentionally or by neglect or forgetfulness	give to or transfer possession of
move out of or depart from	place into the hands or custody of
go away from a place	transmit (knowledge or skills)
leave or give by will after one's death	refer to another person for decision or judgment
transmit (knowledge or skills)
put into the care or protection of someone
remove oneself from an association with or participation in
produce as a result or residue
make a possibility or provide opportunity for; permit to be attainable or cause to remain
act or be so as to become in a specified state
have left or have as a remainder