As a Noun: 1. A thing person or organisation connected with the care of sick or injured people, such as a nurse, hospital, or ambulance. 2. Someone with medical training whose job it is to help people who are injured or sick. English = nurse, paramedic. 3. A place where sick people are looked after by doctors and nurses. English = hospital. 4. A person who is receiving medical treatment from a doctor or a hospital, or who is registered with a particular doctor. English = patient.