abordar, acometer, afrontar, asaltar, atracar, chocar, encarar, invadir, tocar, topar
acometer, animarse, arriesgarse, atreverse, decidirse, descararse, lanzarse, osar
abandonar, ceder, desistir, enredarse, enzarzarse, liarse, renegar, renunciar, retractarse
afrontar, desafiar
jugar
defender, defenderse, derrotar, luchar, oponerse, pelear