tenderisation vs improvement

tenderisation and improvement both are nouns.

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

As nouns, improvement is a hypernym of tenderisation; that is, improvement is a word with a broader meaning than tenderisation:

tenderisation (noun)	improvement (noun)
the act of making meat tender by pounding or marinating it	the act of improving something
	a change for the better; progress in development
	a condition superior to an earlier condition