Definitions of allowance
a share or portion of assets that is assigned or granted
This provision for spousal allowance frequently permits a surviving spouse to claim such items as personal belongings, a vehicle, or small bank accounts.
a sum of money paid regularly to a person to pay for specified needs or expenses
I had two small daughters at the time and found it very difficult as we only had £13 plus family allowance to live on.
the amount of something that is permitted, especially within a set of regulations or for a specified purpose
Pressure to maintain the personal tax allowance in future years could put government finances under more strain.