Surgery is medical treatment in which someone's body is cut open so that a doctor can repair, remove, or replace a diseased or damaged part.

A surgery is the room or house where a doctor or dentist works.

A doctor's surgery is the period of time each day when a doctor sees patients at his or her surgery.

In Britain, when someone such as an MP or a local councillor holds a surgery, they go to an office where members of the public can come and talk to them about problems or issues that concern them.

A surgery is the room in a hospital where surgeons operate on their patients.