JOBS they call them

a person who helps students to acquire knowledge, competence and skills

a person who is qualified to treat people who are ill

a person who is qualified to treat teeth and gums

a person whose job is to chase criminals, investigate crimes, make arrests, etc.

a person who is in charge of a professional kitchen, for example in a restaurant or a hotel

a person whose job is to prepare food

1. a person whose job is to extinguish fires

a person who has expert knowledge of one or more sciences

a man who delivers letters and packages that are sent by post

a person who treats sick animals