terminate vs pass away

terminate and pass away both are verbs.

Word	Noun	Adjective	Verb	Adverb
terminate	No	No	Yes	No
pass away	No	No	Yes	No

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

terminate: have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical
pass away: go out of existence

terminate (verb)	pass away (verb)
bring to an end or halt	pass from physical life and lose all bodily attributes and functions necessary to sustain life
terminate the employment of; discharge from an office or position	go out of existence
have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical
be the end of; be the last or concluding part of