Aquellas

Aquellas is the feminine plural demonstrative determiner and pronoun in Spanish. It forms part of the aquel family, which also includes aquel, aquella, y aquellos, and it is used to refer to feminine nouns that are distant from both the speaker and the listener.

As a determiner, aquello precedes a feminine noun: por ejemplo, "aquellas casas" means those houses over there. As a pronoun, it can stand in place of the noun: "Prefiero aquellas" means I prefer those (over there). The form is specifically feminine plural; its masculine and singular counterparts are aquellos, ese, esa, and aquella, depending on distance and gender.

In usage, "aquellas" conveys a greater distance than forms associated with closer reference, such as estas/este (near the speaker) and esas (near the listener). It is common in descriptive or narrative contexts and remains standard in both Spain and Latin America for referring to feminine plural nouns that are farther away or more distant in consideration.

Summary: "aquellas" functions as a feminine plural demonstrative used to indicate objects or people that are far from both speaker and listener, either as a determiner before a noun or as a standalone pronoun. It is part of the broader system of Spanish demonstratives that distinguish distance and gender.