AC

Stands for All Clear and it's used on calculators!
All Clear, Calculator!
©™✓=π are all gone!
Even itself is gone!

AC is on calculators.

ing

"ing" is a suffix used for doing something. The word bing has a ing but it does not do something.

The man is jumping on the pool

1👍 1👎

wasd

W is North, A is West, S is South and D is East.

We use wasd in FPS games.