Use of Already & All ready

 Already is used to say that something had happened earlier than expected or earlier than it might have happened.

As:-

The gate had already closed.

The court had already assembled.

The meeting has already begun.

All ready:- 

All ready is not the same as 'already' .

It's simply means fully ready or prepared.

Means all is ready.

All are ready.

Ex:- When is your friend coming? He has all ready come.

Are you all ready ? Yes, we're.