subsidisation vs apportionment

subsidisation and apportionment both are nouns.

Word	Noun	Adjective	Verb	Adverb
subsidisation	Yes	No	No	No
apportionment	Yes	No	No	No

As nouns, apportionment is a hypernym of subsidisation; that is, apportionment is a word with a broader meaning than subsidisation:

subsidisation: the act of providing a subsidy
apportionment: the act of distributing by allotting or apportioning; distribution according to a plan

Other hypernyms of subsidisation include allocation, allotment, apportioning, assignation, parceling, parcelling.

subsidisation (noun)	apportionment (noun)
the act of providing a subsidy	the act of distributing by allotting or apportioning; distribution according to a plan
money (or other benefits) obtained as a subsidy