rebut [rebutted, rebutting, rebuts](deny the truth of something) verb [UK: rɪ.ˈbʌt] [US: rə.ˈbət]She rebutted his argument. = Ella refutó su argumento.
refute(to prove (something) to be false or incorrect) verb [UK: rɪ.ˈfjuːt] [US: rə.ˈfjuːt]It's no wonder that his proposition was refuted so soon. = No es de maravillarse que su proposición fuera refutada tan rápido.