allotment in WordNet English dictionary

1. 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"
   allotment  apportionment  apportioning  allocation  parceling  parcelling  assignation 
   
2. a share set aside for a specific purpose
   allotment  allocation