advertir, comprobar, confrontar, constatar, cotejar, ensayar, estudiar, examinar, experimentar, intentar, observar, probar, tantear, verificar
afirmar, apalabrar, asegurar, certificar, garantizar, juramentar, jurar, prometer, testimoniar
aprobar, corroborar, ratifica, ratificar, reafirmar, refirmar, roborar
apoyar, cómputo, escrutinio, recuento
comprobar, compulsar, corroborar, demostrar, probar, repasar, revisar, verificar
constatar, corroborar
aprobar, ratificar
corroborar, sostener, sustentar