This is the 12334th most frequent Spanish word.
listas
"Listas" means "lists" or "ready" in English.
In this sentence, 'listas' is used as an adjective to mean 'ready', describing the state of preparedness of the students.
Las estudiantes están listas para el examen.
The students are ready for the exam.
Here, 'listas' is used as a noun in its plural form to mean 'lists', referring to a series of items.
Esas listas de compras son muy extensas.
Those shopping lists are very extensive.
In this example, 'listas' serves as an adjective meaning 'clever' or 'intelligent', describing the intellectual abilities of the girls.