Sense

1. a tragedy or heroic play
2. (generally) any grave, serious poetry
3. an exaggerated speech, made by a prosecutor
4. tragic fictions and terrors
5. (generally) pomp, display
6. a melancholy event, a tragedy
7. song

Examples

• "ἄλλωσ τε ὁ μὲν Ἡρακλῆσ, εἴπερ ἄρα καὶ ἐτόλμησέν τι τοιοῦτο, ὑπὸ νόσου αὐτὸ ἔδρασεν, ὑπὸ τοῦ Κενταυρείου αἵματοσ, ὥσ φησιν ἡ τραγῳδία κατεσθιόμενοσ· (Lucian, De morte Peregrini, (no name) 9:72)
• ἡ μὲν γὰρ τραγῳδία καὶ σὺν . (Lucian, Muscae Encomium, (no name) 11:3)
• καὶ Τειρεσίαν δὲ τὸν μάντιν ἡ τραγῳδία μέχρισ ἓξ γενεῶν παρατεῖναι λέγει. (Lucian, Macrobii, (no name) 3:2)
• πολὺ δ̓ ἂν καὶ ἐν τῇ τραγῳδίᾳ καὶ ἐν τῇ ἀρχαίᾳ κωμῳδίᾳ εὑρ́οισ τὸ ὑγιαίνειν πρῶτον εὐθὺσ λεγόμενον· (Lucian, Pro lapsu inter salutandum 14:3)
• εἴπερ ἄρ’ ἐθέλεισ ὡσ ἀληθῶσ ἐπαινεῖσθαι ἐπὶ λόγοισ κἀν τοῖσ πλήθεσιν εὐδοκιμεῖν, τὰ μὲν τοιαῦτα πάντα φεῦγε καὶ ἀποτρέπου, ἀρξάμενοσ δὲ ἀπὸ τῶν ἀρίστων ποιητῶν καὶ ὑπὸ διδασκάλοισ αὐτοὺσ ἀναγνοὺσ μέτιθι ἐπὶ τοὺσ ῥήτορασ, καὶ τῇ ἐκείνων φωνῇ συντραφεὶσ ἐπὶ τὰ Θουκυδίδου καὶ Πλάτωνοσ ἐν καιρῷ μέτιθι, πολλὰ καὶ τῇ καλῇ κωμῳδίᾳ καὶ τῇ σεμνῇ τραγῳδίᾳ ἐγγεγυμνασμένοσ· (Lucian, Lexiphanes, (no name) 22:3)

Source: Ancient Greek entries from Wiktionary