My favorite word - in any language

Possibility.

Kanousei (Japanese),
Vozmozhnost (Russian),
Moglichkeit (German),
Posibilidad (Spanish),
Mogelijkheid (Dutch),
Uwezekano (Swahili).

Have you ever watched the Shawshank Redemption?

You know the moment when Andy Dufresne stands under the rain after getting out of prison?

That's possibility made real.