This is the 139th most frequent Romanian word.
doua
The Romanian word "două" means "two" in English.
In this instance, 'două' again enumerates the count 'two' for the feminine plural noun 'cărți' (books).
Mi-am pierdut două cărți valoroase.
I lost two valuable books.
Here, 'două' describes the number 'two' associated with the feminine plural noun 'vaze' (vases).
În cameră sunt două vaze frumoase.
In the room, there are two beautiful vases.
Here, 'două' specifies the quantity 'two' of the noun 'mere' (apples), which is feminine and plural.