One.

How many languages can you name? Nerd Bonus; one of these words is Klingon and another is Elvish from Lord of The Rings...

Uno, واحد, אחת,'e-kahi, hō'ē, aon, einn, um, eme, mek, один, jeden, एक, 一つ, kunye, yāt, bir, бир, yksi, hun, wa', 하나, eins, 'e-tahi, isá, satu, một, wieħed, één, er, án