acaso, perhaps, perchance.
acceder, to accede, yield.
accesible, accessible.
acceso, access.
acción, f., action, power (of motion).
acusación, f., accusation.
acebuche, m., wild olive tree.
acéfalo, acephalous, without a head.
aceite, m., oil.
aceituna, olive, olive-crop.