Determiner

Determiner
 

I have not heard of a determiner before. The description given on the linked page is:

"A determiner is a word that modifies a noun but does not describe its attributes, as an adjective does."

I don't understand and there are no examples given. Can someone please give me some examples of this?

Thank you in advance. :)

Determiners can be different kinds of words (articles, demonstratives, possessives...). They "establish" what the noun is in the sentence.

Articles -> La casa, los niños...
Demonstratives -> Este libro, estas manzanas...
Possessives -> Mi hermano, nuestros amigos...
Numbers -> Un león, trescientas personas...
Others -> ¡Cuánta agua!, ¿qué comida?, algunos invitados, muchos colores...

Muchas gracias Angelica. Ahora comprendo.