This is the 92nd most frequent Russian word.
двух
The Russian word "двух" means "of two" or "two" in the genitive case.
The term 'двух' functions as a genitive case form of 'два' indicating one out of two.
У нашего дома два этажа, но мы арендуем только первый из двух.
Our house has two floors, but we rent only the first of the two.
In this sentence, 'двух' modifies 'роз' in the genitive case, specifying the quantity.
Он подарил ей букет из двух роз.
He gave her a bouquet of two roses.
Here, 'двух' is used in the genitive case to quantify the plural 'языков.'