I. noun
an amount allotted or made available especially from a limited supply
saved up their gasoline ration for a vacation trip
Synonyms: allotment, allowance, apportionment, measure, meed, part, portion, quantum, quota, share; compare share 1
Related Word: assignment, consignment, distribution, division
II. verb
Synonyms: apportion 2, divide, ||divvy, parcel, portion, prorate, quota, share, ||shift
Related Word: allocate, allot, assign, mete (out)