Definition of allow

• make it possible through a specific action or lack of action for something to happen; "This permits the water to rush in"; "This sealed door wont allow the water come into the basement"; "This will permit the rain to run off"
• consent to, give permission; "She permitted her son to visit her estranged husband"; "I wont let the police search her basement"; "I cannot allow you to see your exam"
• let have; "grant permission"; "Mandela was allowed few visitors in prison"