| Ω {letter} | :: The upper case letter omega (ωμέγα), the last letter of the modern Greek alphabet |
| Ω {letter} | :: The upper case letter omega (Ω) is used as the mathematical notation or symbol for the last place in a set or group of items |
| Ω {num} | :: The number 800 in Greek numerals |
| Ω {num} | :: The number 800,000 in Greek numerals |
| Ω΄ {num} | :: The Greek numeral representing the number eight hundred (800); typically romanized as the Roman numeral DCCC |
| -ω {suffix} | :: ending of 1st person singular_number of active forms of verbs of the 1st Conjugation as well as other moods and tenses |
| -ω {suffix} | :: ending of adverb |
| -ω {suffix} | :: ending of colloquial hypocoristic femine names |
| -ω {suffix} | :: ending of vernacular derogatory feminine nouns deriving from nouns |
| ω {letter} | :: The lower case letter omega (ωμέγα), the 24th and last letter of the modern Greek alphabet |
| ω {interj} | :: oh! |
| ω΄ {num} | :: alternative form of Ω΄ |
| ωάριο {n} | :: egg cell, ovum |
| ωάριο {n} | :: ovule |
| ωθώ {v} | :: urge, push |
| Ωκεανία {prop} {f} | :: Oceania |
| Ωκεανίδα {f} | :: Oceanid |
| ωκεάνιος {adj} | :: Oceanic |
| Ωκεανός {prop} {m} | :: Oceanus (Greek god, father of all rivers) |
| ωκεανός {m} | :: ocean |
| ωκεανός {m} | :: wealth |
| Ώλαντ {prop} {n} | :: Åland |
| ωλένη {f} | :: ulna, elbow bone (bone of the forearm) |
| ωμ {n} | :: ohm (derived SI unit of electrical resistance) |
| -ωμα {suffix} | :: indicating process, action |
| ωμά {adv} | :: brutally, abruptly, bluntly |
| ωμέγα {n} | :: omega, the 24th letter of the Greek alphabet |
| ώμος {m} | :: shoulder |
| ωμός {adj} | :: raw, uncooked |
| ωμός {adj} | :: crude |
| ωμός {adj} | :: brutal |
| -ώνω {suffix} | :: usually produces verbs indicating an action or its result |
| ωογένεση {f} | :: oogenesis |
| ωοειδής {adj} | :: egg-shaped, oviform, ovoid |
| ωοτόκος {adj} | :: oviparous, egg laying |
| ώπα {interj} | :: hey!, olé! (indicating good cheer, often used during dancing, expressing fun, enthusiasm and excitement) |
| ώπα {interj} | :: Indicating admiration and surprise |
| ώπα {interj} | :: Indicating endearment and care, accompanying singing to infants |
| ώπα {interj} | :: whoa! (a command to stop) |
| ώπα {interj} | :: oops, expression for acknowledgment of a minor mistake |
| -ωπός {suffix} | :: Added to adjectives to give a diminutive or ameliorated form |
| ώρα {f} | :: hour (1/24 of a day) |
| ώρα {f} | :: time (A quantity of availability in time, time of day as indicated by a clock, some specific time, right time, time for something) |
| Ωραία Κοιμωμένη {prop} {f} | :: Sleeping Beauty (fairy tale and character) |
| ωραίος {adj} | :: good, fine, nice |
| ωραίος {adj} | :: beautiful, pretty, lovely, handsome |
| ωράριο {n} | :: work hours, working timetable |
| ωριαίος {adj} | :: hourly |
| ώριμα {adv} | :: maturely, ripely |
| ώριμος {adj} | :: ripe, mature, mellow (ready for reaping or gathering, or having attained perfection) |
| ώριμος {adj} | :: mature, ripe (grown up in terms of physical appearance, behaviour or thinking) |
| ωριμότητα {f} | :: maturity, ripeness (quality of being mature) |
| ωρίμως {adv} | :: maturely, ripely |
| Ωρίων {prop} {m} | :: Orion, the hunter killed by Artemis |
| Ωρίων {prop} {m} | :: Orion, the constellation |
| ΩΡΛ {n} | :: abbreviation of ωτορινολαρυγγολογία (ENT; ear, nose and throat) |
| Ωρολόγιον {prop} {n} | :: Horologium |
| ωρύομαι {v} | :: howl (with anger, pain) |
| ωρύομαι {v} | :: howl (also of animals) |
| ως {adv} | :: as |
| ως {particle} | :: as |
| ως {prep} | :: (position) to, as far as |
| ως {prep} | :: (time) until, before, by |
| ωσάν {prep} | :: alternative form of σαν |
| ωσαννά {interj} | :: hosanna (cry of praise or adoration to God) |
| ώσμωση {f} | :: osmosis |
| ωσότου {conj} | :: until (up to the time of) |
| ώσπερ {adv} | :: exactly like |
| ώσπου {adv} | :: by the time, when |
| ώσπου {conj} | :: until (up to the time of) |
| ώστε {conj} | :: so that, so, in order that, in order for (with the result that) |
| ώστε {conj} | :: so that, so, therefore (with the result that) |
| ώστε {conj} | :: so (consequently, therefore) |
| ωστόσο {conj} | :: nevertheless, nonetheless, however, but, yet, still (in spite of what preceded) |
| ωταλγία {f} | :: otalgia, earache |
| ωτίδα {f} | :: bustard |
| ωτίτης {m} | :: little finger , pinkie |
| ωτίτιδα {f} | :: otitis, ear inflammation |
| ωφελιμισμός {m} | :: utilitarianism |
| ωφελούμαι {v} | :: profit, benefit |
| ωφελώ {v} | :: benefit, be good for, profit |
| ώχρα {f} | :: ochre |
| ωχριώ {v} | :: blanch, turn pale |
| ωχριώ {v} | :: turn yellow |
| ωχρός {adj} | :: ochre |
| ωχρός {adj} | :: pale, haggard, pallid, wan |
| ωχρότητα {f} | :: pallor, paleness |