[ I or T ] to cover something partly by going over its edge; to cover part of the same space:

C2 [ I ] If two or more activities, subjects, or periods of time overlap, they have some parts that are the same:

C2 [ I or T ] If a football player overlaps, they pass the ball to another member of their team and then run beyond that player so that they are ready to receive the ball again.

[ C or U ] the amount by which two things or activities cover the same area:

[ S ] in football, a movement in which a player passes the ball to another member of their team and then runs beyond that player so that they are ready to receive the ball again