upgrade vs amend

upgrade is a noun but amend is not a noun.

Word	Noun	Adjective	Verb	Adverb
upgrade	Yes	No	Yes	No
amend	No	No	Yes	No

As verbs, amend is a hypernym of upgrade; that is, amend is a word with a broader meaning than upgrade:

Other hypernyms of upgrade include ameliorate, better, improve, meliorate.

As verbs, amend is a hypernym of upgrade; that is, amend is a word with a broader meaning than upgrade:

Other hypernyms of upgrade include ameliorate, better, improve, meliorate.

upgrade (noun)	amend (noun)
the act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components)
hardware that provides better performance than an earlier version did
the property possessed by a slope or surface that rises
a reservation that is improved
software that provides better performance than an earlier version did
an upward slope or grade (as in a road)

upgrade (verb)	amend (verb)
to improve what was old or outdated	to make better
give better travel conditions to	set straight or right
get better travel conditions	make amendments to
rate higher; raise in value or esteem
give a promotion to or assign to a higher position