| Word | Meaning | Occurrences |
|---|---|---|
| ὀρθρινός, ή, όν | early | 1 |
| ὄρθρος, ου, ὁ | dawn | 3 |
| ὀρθῶς | rightly, correctly | 4 |
| ὁρίζω | determine; define | 8 |
| ὅριον, ου, τό | boundary | 12 |
| ὁρκίζω | adjure, implore | 2 |
| ὅρκος, ου, ὁ | oath | 10 |
| ὁρκωμοσία, ας, ἡ | oath taking, oath | 4 |
| ὁρμάω | to rush | 5 |
| ὁρμή, ῆς, ἡ | impulse | 2 |
| ὅρμημα, τος, τό | violent rush, onset | 1 |
| ὄρνεον, ου, τό | bird | 3 |
| ὄρνιξ, ιχος, ἡ | hen | 1 |
| ὄρνις, ιθος, ἡ | Hen | 2 |
| ὁροθεσία, ας, ἡ | fixed boundary | 1 |
| ὅρος, ου, ὁ | border | 1 |
| ὄρος, ους, τό | mountain | 63 |
| ὀρύσσω | to dig | 3 |
| ὀρφανός, ή, όν | orphan; orphaned | 2 |
| ὀρχέομαι | dance | 4 |
| ὅς, ἥ, ὅ | who, which | 1377 |
| ὁσάκις | as often as | 3 |
| ὅσιος, α, ον | holy; pious | 8 |
| ὁσιότης, ητος, ἡ | piety, holiness | 2 |
| ὁσίως | holy | 1 |
| ὀσμή, ῆς, ἡ | odor, smell | 6 |
| ὅσος, η, ον | as many as, whatsoever | 110 |
| ὅσπερ, ἥπερ, ὅπερ | just as, even as | 1 |
| ὀστέον, ου | bone | 4 |
| ὅστις, ἥτις, ὅτι | who; whoever | 147 |
| ὀστράκινος, η, ον | earthen | 2 |
| ὄσφρησις, εως, ἡ | sense of smell | 1 |
| ὀσφῦς, ύος, ἡ | waist, loins | 8 |
| ὅταν | whenever, when | 123 |
| ὅτε | when; while | 103 |
| ὅτι | that | 1297 |
| ὅτου | until, till | 5 |
| οὗ | where | 27 |
| οὐ, οὐκ, οὐχ | no | 1606 |
| οὐά | aha! | 1 |
| οὐαί | woe | 46 |
| οὐδαμῶς | by no means | 1 |
| οὐδέ | and not | 143 |
| οὐδείς, οὐδεμία, οὐδέν | no one, nothing | 227 |
| οὐδέποτε | never | 16 |
| οὐδέπω | not yet | 4 |
| οὐθείς | no one | 7 |
| οὐκέτι | no longer | 47 |
| οὐκοῦν | therefore, so | 1 |
| οὖν | so, therefore | 499 |
| οὔπω | not yet | 26 |
| οὐρά, α̑ς, ἡ | tail | 5 |
| οὐράνιος, ον | heavenly | 9 |
| οὐρανόθεν | from heaven | 2 |
| οὐρανός, οῦ, ὁ | heaven | 273 |
| Οὐρβανός, οῦ, ὁ | Urbanus | 1 |
| Οὐρίας, ου, ὁ | Uriah | 1 |
| οὖς, ὠτός, τό | ear | 36 |
| οὐσία, ας, ἡ | substance; property, wealth | 2 |
| οὔτε | and not | 87 |
| οὗτος, αὕτη, τοῦτο | this | 1387 |
| οὕτως | in this manner | 208 |
| οὐχί | not; no; not? | 54 |
| ὀφειλέτης, ου, ὁ | debtor | 7 |
| ὀφειλή, ῆς, ἡ | duty; obligation | 3 |
| ὀφείλημα, τος, τό | debt | 2 |
| ὀφείλω | to owe | 35 |
| ὄφελον | would that | 4 |
| ὄφελος, ους, τό | benefit, good | 3 |
| ὀφθαλμοδουλία, ας, ἡ | eye-service | 2 |
| ὀφθαλμός, οῦ, ὁ | eye | 100 |
| ὄφις, εως, ὁ | snake | 14 |
| ὀφρῦς, ύος, ἡ | brow, edge | 1 |
| ὀχετός, οῦ, ὁ | drain, sewer | 0 |
| ὀχλέω | trouble | 1 |
| ὀχλοποιέω | form a mob | 1 |
| ὄχλος, ου, ὁ | a crowd; horde | 175 |
| Ὀχοζίας, ου, ὁ | Ahaziah, Ochoziah | 0 |
| ὀχυρός, ά, όν | strong, firm, sturdy | 1 |
| ὀχυρόω | fortify |