# Military Weapon System

To access the Military Weapon System we need to enter a multi-language password with a keypad. There is a clue for the above selection and we can front attack it but maybe there is a trial limit. Trying the next buttons we got:

The other clues for French, Italian and English respectively are just single letter as well. But it make sense to think that all the passwords for different selection has the same meaning.So,what it might be?

• I've downvoted because I don't think this is a high-quality puzzle, because there's no path to the solution. It seems to me that the only way to solve this is to try words of the right length until one of them fits. There's no insight or "aha moment". – Deusovi Jul 13 at 20:55
• there is a clue on the drawing that narrows it down – TSLF Jul 13 at 21:01

ELF, ONZE, UNDICI, ELEVEN (German, French, Italian, English words for the number $$11$$).
The EQUALS sign is an $$11$$ on it's side (hence NUMBER (#) $$11$$).