Frying pans are skillets! FOOL
We know...but the question was "which one do we use"?
Frying pans is most commonly used.
Not in my part of the US--we use "skillet". The term "frying pan" is British and Northeast USA.
I have to say, but my namesake got into a bit of a muddle there - sorry Ben.
The question is obviously not:
Qu. Do you use a skillet or a frying pan, or both?
Qu. Do you use "skillet" (i.e. the word), "frying pan", or both.
Whilst frying pans are skillets (i.e. for all x, x is a frying pan iff x is a skillet) it is certainly not true that the word "frying pan" is the word "skillet"... FOOL
Here in Texas it's 6 one way, half a dozen the other. ;-)