What is Allow ?
Allow is (verb) 1. to let someone do something She allowed me to borrow her book. Smoking is not allowed in the restaurant. You are allowed to take two pieces of hand luggage onto the plane. 2. to give We will allow you a discount. 3. to agree or to accept legally to allow a claim for damages to allow for something to provide a certain amount of time or money for something to allow 10% extra for postage and packing Allow 28 days for delivery.
source: Easier English, Student Dictionary Upper Intermediate Level