allowance

an amount allowed or granted (as during a given period)

a sum granted as reimbursement for expenses

an amount added or deducted on the basis of qualifying circumstances

a permissible difference; allowing some freedom to move within limits

a reserve fund created by a charge against profits in order to provide for changes in the value of a company's assets

the act of allowing

Approval; approbation.

put on a fixed allowance, as of food

To put upon a fixed allowance (esp. of provisions and drink); to supply in a fixed and limited quantity; as, the captain was obliged to allowance his crew; our provisions were allowanced.