Matthew 10:27οὖς
What I tell you in the dark, speak in the daylight; what is whispered in your ear, proclaim from the housetops.
Mark 4:9ὦτα
Then Jesus said, “He who has ears to hear, let him hear.”
Luke 1:44ὦτά
For as soon as the sound of your greeting reached my ears, the baby in my womb leaped for joy.
Acts 7:57ὦτα
At this they covered their ears, cried out in a loud voice, and rushed together at him.
1 Corinthians 2:9οὖς
Rather, as it is written: “No eye has seen, no ear has heard, no heart has imagined, what God has prepared for those who love Him.”
Revelation 2:7οὖς
He who has an ear, let him hear what the Spirit says to the churches. To the one who overcomes, I will grant the right to eat from the tree of life in the Paradise of God.

Abbott-Smith

οὖς genitive, ὠτός, τό,
[in LXX chiefly for אֹזֶן ;]
the ear: Mat.13:16, Mrk.7:33, Luk.22:50, 1Co.2:9 12:16, 1Pe.3:12; ἐν τ. ὠσί, Luk.4:21; εἰς τ. ὦτα ἀκούεσθαι, Act.7:57; γίνεσθαι, Luk.1:44; εἰσέρχεσθαι, Jas.5:4; εἰς τ. οὖς ἀκούειν, Mat.10:27; πρὸς τ. οὖς λαλεῖν, Luk.12:3; τὰ ὦ. συνέχειν (MM, xviii), Act.7:57. Metaphorical, of understanding, perceiving, knowing: Mat.13:16; ὁ ἔχων (εἴ τις ἔχει) οὖς ἀκουσάτω, Rev.2:7, 11 2:17, 29 3:6, 13 13:9; ὁ ἔχων (ὃς ἔχει, εἴ τις ἔχει) ὦτα (ἀκούειν) ἀκουέτω, Mat.11:15 13:9, 43, Mrk.4:9, 23 7:16 (R, mg.), Luk.8:8 14:35; τοῖς ὠ. βαρέως ἀκούειν, Mat.13:15 Act.28:27" (LXX) ; ὦ. ἔχοντες οὐκ ἀκούειν, Mrk.8:18; ὦ. τοῦ μὴ ἀκούειν, Rom.11:8; θέσθε εἰς τὰ ὦ., Luk.9:44; ἀπερίτμητος τοῖς ὠ., Act.7:51.†
(AS)

Sources: Abbott-Smith’s Manual Greek Lexicon of the New Testament (1922, public domain) and glosses from STEPBible TBESG (CC BY 4.0); STEPBible TAGNT (Greek New Testament, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.