Australia was one nation with a major centre for Parliament House and the Government (:
A flag pole is also called a flag staff. Flags are flown at half-mast when famous people die, but I have never heard of a flag mast. However, the English Oxford dictionary says that a mast can be a flagpole ( as well as a TV antenna)
A flag is flown at half-mast to indicate a death.
The Papal flag should be full staff
Korea?
The flag must first be hoisted to the top of the mast momentarily, and then it is lowered to the half mast position and secured.
Pole
Full-mast for normal day.half-mast for mourning
You only fly a Canadian flag at half mast when you are mourning.
A flag flown upside down is an official signal of distress. A flag flown at half mast, is a mark of respect or mourning.
Hoist
The pole is a flag holder. Mast is another word for flag holder.
By tradition, it is the lowering of the flag that conveys respect. If you just raise the flag to the half-mast position, it hasn't been lowered.