the sound a bell makes

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.

to mean eveything and nothing all at the same time but never at once...

The sound either a bell makes or the sound someone's head makes after you bash it with a bell.

The sound that is made by a superhero when strikes at a villian

An American rapper