working tearm

Permanent means lasting and indefinite.

A fixed term contract is a contract stating that you will be employe for a certain period of time that will be clearly stated on your contract. 

Zero hours contract that is also know as casual contracts is employees able to hire strata with no guarantee of work.

Temporary contract when a company hires a few workers for a short term as they are in need of more workers.

 Free lance: someone who is self employee and is hired by people.