allocation

(noun) a share set aside for a specific purpose. Synonyms: allotment.

(noun) the act of distributing by allotting or apportioning; distribution according to a plan. Synonyms: allotment, apportionment, apportioning, parceling, parcelling, assignation. Example: "The apportionment of seats in the house of representatives is based on the relative population of each state."

(noun) (computer science) the assignment of particular areas of a magnetic disk to particular data or instructions. Synonyms: storage allocation.