buscar, to seek, search.
buzón, m., letter box.
C
caballero, m., gentleman.
caballerosidad, f., nobleness, generosity.
caballo, m., horse.
cabecera, f., head of a bed.
cabello, m., hair.
[caber], to be contained, be possible; no — en, to be incapable.
cabeza, f., head; sentar la —, to become serious.