atropellar - to knock down, to run over, to abuse

aullar - to howl, to yell, to cry

aunar - to join, to combine

autentificar - to authenticate, to legalize

auxiliar - to help

aventar - to throw, to throw out, to throw air to someone

aventurar - to hazard, to risk, to venture

avergonzar - to embarrass

averiar - to break down

adelantarse - to go ahead, go in advance