dentist: a person whose profession is dentistry.
noun: The word "dentist" has the denotation "man or woman who fixes teeth."
electrician: a person who installs, operates, maintains, or repairs electric devices or electrical wiring.
noun: A properly qualified electrician may be able to advise you about linking smoke alarms.
emergency medical technician: a person who is specially trained and certified to give emergency medical care to patients before they reach a healthcare facility. Abbreviation: EMT
noun: I spent the day at the medical facility with the emergency medical technician