allocation vs assigning

allocation and assigning both are nouns.

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

As nouns, assigning is a hypernym of allocation; that is, assigning is a word with a broader meaning than allocation:

allocation: (computer science) the assignment of particular areas of a magnetic disk to particular data or instructions
assigning: the act of distributing something to designated places or persons

Other hypernyms of allocation include assignment.

allocation (noun)	assigning (noun)
the act of distributing by allotting or apportioning; distribution according to a plan	the act of distributing something to designated places or persons
(computer science) the assignment of particular areas of a magnetic disk to particular data or instructions
a share set aside for a specific purpose