Substantiv
commentator [pl. commentators]
expounder [pl. expounders] , {professions}
annotator [pl. annotators]
explainer [pl. explainers] , {relations}
exponent [pl. exponents]
expositor [pl. expositors] , {professions}
elucidator {Bildung}
شارِح {تعليم}
glossarist {Bildung}
شارِح {تعليم}