διάλεξις
From LSJ
ὁ γὰρ μανθάνων κιθαρίζειν κιθαρίζων μανθάνει κιθαρίζειν → he who is learning the harp, learns the harp by harping
English (LSJ)
εως, ἡ,
A discourse, argument, Ar.Nu.317, Jul.ad Them. 255b (pl.), f.l. in Pl.Ep.350d, Philostr.VA4.40; conversation, interview, Wilcken Chr.155.17 (iii A. D.). II = διάλεκτος 11.2, D.C. 60.17. III passage in a book, specimen of style, D.H.Dem. 21; phrase, Ἀττικαὶ δ., title of work by Aristophanes of Byzantium. IV popular discourse, lecture, Philostr.VS1.24.1, al., Diog.Oen.18, etc.; of the discourses of Epictetus, Gell.19.1.14.
Greek (Liddell-Scott)
διάλεξις: -εως, ἡ, ὁμιλία, συζήτησις, Ἀριστοφ. Νεφ. 317, Ἐπ. Πλάτ. 350D. II. =διάλεκτος ΙΙ, Δίων Κ. 60, 17.