Word starting with o ending in a - (73 words)
3 letter words starting with o and ending in a
| Scrabble Word | Definition |
| oba5 | A king of a Yoruba polity. |
| oca5 | Any of certain species of Oxalis (Oxalis crenata, and Oxalis tuberosa) which bear edible tubers. |
| oda4 | A room within a harem |
| oka7 | (historical) A former Turkish, Egyptian, Hungarian, and Romanian unit of weight, usually of a little more than a kilogram. |
| ora3 | plural of os; mouths or openings, especially of the cervix. |
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4 letter words starting with o and ending in a
| Scrabble Word | Definition |
| obia6 | Alternative form of obeah |
| odea5 | plural of odeum |
| ohia7 | Either of two flowering trees of the myrtle family, especially |
| okra8 | The edible immature mucilaginous seed pod (properly, capsule) of the Abelmoschus esculentus. |
| olea4 | |
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5 letter words starting with o and ending in a
| Scrabble Word | Definition |
| ocrea7 | (botany) A sheath around a plant stem forming from the stipule of a leaf and extending above the point of insertion of the leaf. |
| oidia6 | plural of oidium |
| omasa7 | plural of omasum |
| omega8 | The twenty-fourth letter of the Classical and the Modern Greek alphabet, and the twenty-eighth letter of the Old and the Ancient Greek alphabet, i.e. the last letter of every Greek alphabet. Uppercase version: Ω; lowercase: ω. |
| opera7 | (music) A theatrical work, combining drama, music, song and sometimes dance. |
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6 letter words starting with o and ending in a
| Scrabble Word | Definition |
| obelia8 | (zoology) Any of various colonial marine hydroids of the genus Obelia. |
| ochrea11 | (botany) Alternative form of ocrea |
| oedema9 | (British spelling) Alternative form of edema |
| omenta8 | plural of omentum |
| optima10 | plural of optimum |
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7 letter words starting with o and ending in a
| Scrabble Word | Definition |
| ocarina9 | (music) A woodwind musical instrument that is closed at both sides to produce an enclosed space, and punctured with finger holes. |
| olestra7 | A fat substitute (a glyceride of sucrose) that cannot be easily digested and therefore adds no fat, calories, or cholesterol to food products; also used as an industrial lubricant. |
| oogonia8 | plural of oogonium |
| ootheca12 | An egg case of any of the orthopteroid insects (such as cockroaches and mantids). |
| opuntia9 | Opuntia, a genus of cactus that includes such cacti as the prickly pear and xoconostle. |
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8 letter words starting with o and ending in a
| Scrabble Word | Definition |
| occipita14 | plural of occiput |
| oedemata11 | plural of oedema |
| oiticica12 | The tree Licania rigida, endemic to Brazil and Puerto Rico. |
| oliguria9 | (medicine) A decreased production in the volume of urine. |
| omnivora13 | |
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9 letter words starting with o and ending in a
| Scrabble Word | Definition |
| oceanaria11 | plural of oceanarium |
| octahedra15 | plural of octahedron |
| ommatidia14 | plural of ommatidium |
| omophagia17 | The eating of raw food, especially raw flesh. |
| orchestra14 | (music) A large group of musicians who play together on various instruments, usually including some from strings, woodwind, brass and/or percussion; the instruments played by such a group. |
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10 letter words starting with o and ending in a
| Scrabble Word | Definition |
| ophthalmia20 | (medicine) ophthalmitis |
| orthoptera15 | Any of very many four-winged insects, of the order Orthoptera, such as grasshoppers, crickets and locusts |
| ostensoria10 | plural of ostensorium |
11 letter words starting with o and ending in a
| Scrabble Word | Definition |
| orthodontia15 | Synonym of orthodontics |
12 letter words starting with o and ending in a
| Scrabble Word | Definition |
| onomatopoeia16 | (uncountable) The property of a word of sounding like what it represents. |
| osteomalacia16 | (medicine) A softening of adult bones due to inadequate mineralization; the adult equivalent of rickets |
| osteosarcoma16 | A type of cancer of the bone. |
14 letter words starting with o and ending in a
15 letter words starting with o and ending in a
| Scrabble Word | Definition |
| oligodendroglia19 | (anatomy) tissue (neuroglia) consisting of glial cells that are smaller than astrocytes and form the myelin sheath |
We found 73 words starting with o and ending in a
Definitions from Wikitionary and Text available under Creative Commons License