mechanic : someone whose job is repairing the engines of vehicles and other machines
Noun a car/garage/bike mechanic
Electrician : a person who puts in, checks, and repairs electrical wires and electrical equipment
Noun The electrician has diagnosed a fault in the wiring.
Mail carrier : A second researcher was dressed as a mail carrier outfitted with a blue-collared shirt, and a navy blue shoulder bag for parcels.
Noun a postman
mayor : the elected leader of a city or town
Noun The mayor announced a reorganization of the police department.
Teacher : someone whose job is to teach in a school or college
Noun The teacher drew a diagram showing how the blood flows through the heart.
Optician : a person whose job is fitting and selling glasses and contact lenses to correct sight problems, but who does not examine people's eyes
Noun You really ought to see an optician.
Plumber : a person whose job is to supply and connect or repair water pipes, baths, toilets, etc
Noun When is the plumber coming to repair the burst pipe?
Crossing guard : a place where something such as a road, river, etc. can be crossed safely, or a place where a road and a railway meet and cross each other
Noun a border/river crossing
Dentist : a person whose job is treating people's teeth
Noun You should have your teeth checked by a dentist at least twice a year.
Emergency something dangerous or serious, such as an accident, that happens suddenly or unexpectedly and needs fast action in order to avoid harmful results
Noun How would disabled people escape in an emergency?
Farmer : someone who owns or takes care of a farm
Noun a dairy/sheep farmer
Painter : someone whose job is to paint surfaces, such as walls and doors
Noun J.M.W. Turner is one of Britain's best-known landscape painters.
Cashier : a person whose job is to receive and pay out money in a shop, bank, restaurant, etc.
Noun She started as a cashier making $6.50 an hour, then moved up to customer service manager, making $7.65 an hour.
Repairman : someone whose job is to make things that are broken work correctly
Noun a TV repairman
chef : a skilled and trained cook who works in a hotel or restaurant, especially the most important cook
Noun He is one of the top chefs in Britain.
Lifeguard : a person on a beach or at a swimming pool whose job is to make certain that the swimmers are safe and save them if they are in danger
Noun the lifeguard save peolpe
Veterinarian : a person trained in the medical treatment of animals
Noun He is the chief veterinarian for the zoo and deals with all kinds and sizes of animals.
Technician : a person or company whose job is removing and getting rid of
Noun Your garbage collector may not accept a used computer as trash.
Doctor : a person with a medical degree whose job is to treat people who are ill or hurt
Noun The doctor prescribed some medication.
Layer : a level of material, such as a type of rock or gas, that is different from the material above or below it, or a thin sheet of a substance
Noun the ozone layer