What does "cosas de venta usadas" mean in English?

"Cosas de venta usadas" translates from Spanish to English as "used items for sale," or "secondhand items for sale." "Cosas" means "things" or "items"; "de venta" means "for sale"; and "usadas" is an adjective meaning "used."

In the Spanish language, it is important for nouns and adjectives to agree. This agreement is necessary for both the number of the noun in question, and the gender of the noun. In this phrase, because "cosa'' is a feminine noun, the speaker also has to make change the adjective "usado" to its feminine form: "usada." Because "cosa" is plural in this phrase, "usada" then also becomes plural: "usadas."