where and when we use una

Question

where and when we use una

Answer 1

Una/un both mean "a". Una is the feminine version of the word, and un is the masculine. Una is used with words are feminine. Ex. una computadora, una pluma). Un would be used with masculine words. Ex (un carro, un edificio)

Answer 2

Una is an article, it means A. So you use it when the word after the article (i.e. una palabra, una mesa) is feminine. (The grammar rule I have given you does not cover everything but I think it will help you understand the basics)

Hope this helps!