polish [polishes](cleanliness in performance or presentation) noun [UK: ˈpɒl.ɪʃ] [US: ˈpɑːl.ɪʃ]
sophistication [sophistications](cultivated intellectual worldliness; savoir-faire) noun [UK: sə.ˌfɪ.stɪˈk.eɪʃ.n̩] [US: sə.ˌfɪ.stɪˈk.eɪʃ.n̩]His very rough summary does not do justice to the original text and its intellectual sophistication. = Il suo sommario molto approssimativo non rende giustizia al testo originale e alla sua raffinatezza intellettuale.