1 nounpríomhúdar masc1 c m uthe mastermind behind the bombingan té a phleanáil an bhuamáil2 verb TRANSITIVEhis escape was masterminded by LiamLiam a phleanáil a éalúSorcha masterminded the win with two goalsSorcha ba mhó faoi deara an bua de bharr an dá chúl a fuair sí