Sinónimos de corroborar

2 Sílabas
probar
3 Sílabas
validar, contestar, cerciorar, demostrar, refrendar, apoyar, constatar, deferir, confirmar, comprobar
4 Sílabas
homologar, justificar, certificar, convalidar, ratificar, reafirmar, revalidar, reconocer, autorizar, verificar