That's no problem Hunter, the endless acronyms of lucid dreaming can be confusing.

FILD stands for Finger Induced Lucid Dream and is a technique for inducing a WILD, which stands for a Wake Initiated Lucid Dream.

FILD is a technique to induce the wake initiated variety of lucid dream - those dreams in which you fall asleep consciously, taking consciousness with you into the dream world.

So to clarify, a WILD is a category or type of lucid dream, not a technique. It is a WILD that you are trying to accomplish by using the FILD technique.