apportionment vs assignation

apportionment and assignation both are nouns.

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

As nouns, apportionment and assignation are synonyms defined as:

apportionment and assignation: the act of distributing by allotting or apportioning; distribution according to a plan

Other synonyms of apportionment include allocation, allotment, apportioning, parceling, parcelling.

apportionment (noun)	assignation (noun)
the act of distributing by allotting or apportioning; distribution according to a plan	a secret rendezvous (especially between lovers)
	the act of distributing by allotting or apportioning; distribution according to a plan