aurora, f. dawn.
ausencia, f., absence.
ausente, absent.
auto, m., judicial decree or sentence; warrant, edict; — de fe, public punishment by the Inquisition, often a public burning; (hence) a great fire, a bonfire, a fire.
autor, m., author.
autoridad, f., authority.
autorizar, to authorize
avanzado, -a, adj. pp. of avanzar, advanced, late.
avanzar, to advance, progress.
avaro, -a, miserly, avaricious