allotment, allocation -- (a share set aside for a specific purpose)
allotment, apportionment, apportioning, allocation, parceling, parcelling, assignation -- (the act of distributing by allotting or apportioning; distribution according to a plan; "the apportionment of seats in the House of Representatives is based on the relative population of each state")
allocation, storage allocation -- ((computer science) the assignment of particular areas of a magnetic disk to particular data or instructions)