Definition of "Allowance" :

noun: the act of allowing

"He objected to the allowance of smoking in the dining room."

noun: a permissible difference; allowing some freedom to move within limits

noun: an amount added or deducted on the basis of qualifying circumstances

"An allowance for profit."

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

"Travel allowance."

noun: a sum granted as reimbursement for expenses

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

verb: put on a fixed allowance, as of food