key
From LSJ
Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
English > Greek (Woodhouse)
substantive
small keys with three teeth: Ar. κλειδία… τρεῖς ἔχοντα γομφίους (Thesmophoriazusae 421).
Met., see interpretation.
seeing that the place was the key of Sicily: P. ὁρῶντες προσβολὴν ἔχον τὸ χωρίον τῆς Σικελίας (Thuc. 4, 1).