asimilar, to assimilate.
asociar, to associate.
asomar, to show, place, appear suddenly.
asombrar, to frighten, astonish.
asombro, m., fear, dread.
aspecto, m., look, aspect.
astro, m., star.
astucia, f., craft, deceit, artifice.
astut-o, -a, subtle, astute, shrewd.
asunto, m., matter, affair, subject.