Romans 10:18 ἀλλὰ, λέγω μὴ οὐκ ἤκουσαν; μενοῦνγε· εἰς πᾶσαν τὴν γῆν ἐξῆλθεν ὁ φθόγγος αὐτῶν καὶ εἰς τὰ πέρατα τῆς οἰκουμένης τὰ ῥήματα αὐτῶν.
But I say, didn't they hear? Yes, most certainly, "Their sound went out into all the earth, their words to the ends of the world."
Noun: Genitive Singular Feminine

Revelation 3:10 ὅτι ἐτήρησας τὸν λόγον τῆς ὑπομονῆς μου, κἀγώ σε τηρήσω ἐκ τῆς ὥρας τοῦ πειρασμοῦ τῆς μελλούσης ἔρχεσθαι ἐπὶ τῆς οἰκουμένης ὅλης πειράσαι τοὺς κατοικοῦντας ἐπὶ τῆς γῆς.
Because you kept my command to endure, I also will keep you from the hour of testing, which is to come on the whole world, to test those who dwell on the earth.
Noun: Genitive Singular Feminine

Revelation 16:14 εἰσὶν γὰρ πνεύματα δαιμονίων ποιοῦντα σημεῖα, ἃ ἐκπορεύεται ἐπὶ τοὺς βασιλεῖς τῆς οἰκουμένης ὅλης συναγαγεῖν αὐτοὺς εἰς τὸν πόλεμον τῆς ἡμέρας τῆς μεγάλης τοῦ θεοῦ τοῦ παντοκράτορος.
for they are spirits of demons, performing signs; which go forth to the kings of the whole inhabited earth, to gather them together for the war of that great day of God, the Almighty.
Noun: Genitive Singular Feminine