arcada, f., arcade, arch.
arcángel, m., archangel.
arco, m., arch, archway, entrance
arch, niche, recess; —iris, rainbow.
arder, to burn, blaze, glow.
ardid, m., cunning, trick.
ardiente, ardent, fiery, burning, glowing.
ardor, m., ardor, fire, heat.
ardoroso, -a, burning, glowing.
arena, f., sand.