assignation vs apportionment

assignation and apportionment both are nouns.

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

As nouns, assignation and apportionment are synonyms defined as:

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

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

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