door A1

/do(ː)ɹ/ A flat barrier on a hinge that you open and close to enter or leave a room, building, or vehicle.

forensic C1

/fəˈɹɛn.zɪk/ Relating to the use of science to investigate crimes and provide evidence in court.

forum B2

/ˈfɔɹəm/ A place, meeting, or website where people exchange ideas and opinions.