We use allow when someone says it is okay to do something. It means to give a person permission. It is often used when asking if something is okay or allowed.
They allow dogs in this park.
My parents allow me to watch TV.
Allow can mean to let something happen or be possible. It gives space or chance for something to take place or exist.
This door allows fresh air inside.
The rules allow new ideas to grow.
Allow can mean that a person thinks or accepts something is true or possible. It shows agreement or understanding even if it is not certain.
We allow that mistakes happen sometimes.
He allows the idea could be correct.
Allow can mean to keep time or space for something to happen. It means to save or set aside time, space, or resources.
Please allow 10 minutes for the test.
We allow time for lunch every day.
In formal or technical language, allow means to include or take something into account. It is used when plans or calculations expect or accept something.
The budget allows for unexpected costs.
The plan allows changes if needed.
In sports, allow means to accept or not stop some actions by the rules or referee. It shows what can or cannot be done in the game.
The referee allowed the goal to stand.
Players are allowed to touch the ball once.