the method or possibility of approaching a place or person, or the right to use or look at something:
The only access to the village is by boat.
The main access to (= entrance to) the building is at the side.
The children’s father was refused access to them at any time (= refused official permission to see them).
verb [T] to open a computer file (= a collection of information stored on a computer) in order to look at or change information in it