improvement vs upgrade

upgrade vs improvement

improvement and upgrade both are nouns.

improvement is not a verb while upgrade is a verb.

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

As nouns, upgrade is a hyponym of improvement; that is, upgrade is a word with a more specific, narrower meaning than improvement:

improvement: the act of improving something
upgrade: the act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components)

Other hyponyms of improvement include tenderisation, tenderization, development, cleaning, cleansing, cleanup, correction, rectification, optimisation, optimization, perfection, reform, amelioration, betterment, melioration, self-improvement, self-reformation, clarification, clearing, enrichment, humanisation, humanization, modernisation, modernization, overhaul, redevelopment, renovation, enhancement, sweetening, upturn, airing, ventilation, fix, fixing, fixture, mend, mending, repair, reparation, stabilisation, stabilization, turd polishing, business process reengineering.

improvement (noun)	upgrade (noun)
the act of improving something	the act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components)
a change for the better; progress in development	hardware that provides better performance than an earlier version did
a condition superior to an earlier condition	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)

improvement (verb)	upgrade (verb)
	to improve what was old or outdated
	give better travel conditions to
	get better travel conditions
	rate higher; raise in value or esteem
	give a promotion to or assign to a higher position

Difference between improvement and upgrade

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