The parts of a normal suspension fork in Britain any way are called.

The bit that goes inside the frame is the Steerer tube..the handle
bar stem goes in this.

Then they are the yokes..either one or two..some times called crown.

The fork tubes or Stanchions go in the yokes. These are usually
chromed but sometimes they are aluminium with a gold coating.

Then the bottom part of the fork is called the slider and this holds
the wheel axle and has the brake attached.

You get upside down forks on expensive MTBs and sports motor bikes
and these have the parts upside down for more strength.