allotment vs allocation

allotment and allocation both are nouns.

Word	Noun	Adjective	Verb	Adverb
allotment	Yes	No	No	No
allocation	Yes	No	No	No

As nouns, allotment and allocation are synonyms defined as:

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

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

As nouns, allotment and allocation are synonyms defined as:

allotment (noun)	allocation (noun)
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
a share set aside for a specific purpose	(computer science) the assignment of particular areas of a magnetic disk to particular data or instructions
	a share set aside for a specific purpose