PashtunPronunciation: /pəʃˈtuːn/ (also Pakhtun /pəkˈtuːn/)Definition of Pashtun noun a member of a Pashto-speaking people inhabiting southern Afghanistan and NW Pakistan. Also called Pathan.Origin:from Pashto paštūnPashtun in other Oxford dictionaries Definition of Pashtun in the US English dictionary