I make no apologies - I can't abide the Americanism of "Airplane". It is an aeroplane..... like wise "Airfoil" is in fact an "Aerofoil".
At the end of the day - who really cares? As long as I can get in, start up, and drill some holes in the sky after work, what does it matter.
I understand that Douglas Bader hated the expression 'plane.....
Thats it - its a nice day, I have no aeroplane available, so I am going to pull my motorbike out of the garage, and go do some truly lowlevel flying.....