10-letter words starting with O
1726 words — Scrabble scores shown
There are 1726 10-letter words that start with the letter O in our word list. All words are valid in standard English dictionaries and can be used in Scrabble and Words with Friends. The number shown on each word is its Scrabble point value.
2-letter
(19)
3-letter
(91)
4-letter
(201)
5-letter
(334)
6-letter
(705)
7-letter
(1196)
8-letter
(1744)
9-letter
(1892)
10-letter
(1726)
11-letter
(1373)
12-letter
(1021)
13-letter
(797)
14-letter
(598)
15-letter
(403)
- oosporange13
- oostegitic13
- oosterbeek16
- ootocoidea13
- oozinesses19
- opacifying21
- opacimeter16
- opalescent14
- opalescing15
- opalinidae13
- opaqueness21
- openairish15
- openhanded17
- opennesses12
- operalogue13
- operameter14
- operatable14
- operatical14
- operations12
- operatives15
- operculata14
- operculate14
- operculums16
- operettist12
- ophelimity20
- ophicleide18
- ophidiidae17
- ophidology20
- ophiobolus17
- ophiolater15
- ophiolatry18
- ophiolitic17
- ophiologic18
- ophiomancy22
- ophiomorph22
- ophioninae15
- ophiophobe22
- ophiophoby25
- ophiouride16
- ophisaurus15
- ophthalmia20
- ophthalmic22
- ophthalmol20
- opiliaceae14
- opilionina12
- opilionine12
- opiniaster12
- opiniastre12
- opiniative15
- opinicuses14
- opinionate12
- opinionist12
- opiomaniac16
- opisometer14
- opisthenar15
- opisthotic17
- opodidymus19
- opotherapy20
- oppilating15
- oppilation14
- oppilative17
- opposeless14
- opposingly18
- oppositely17
- opposition14
- oppositive17
- oppressing15
- oppression14
- oppressive17
- oppressors14
- opprobrium18
- oppugnance17
- oppugnancy20
- opsiometer14
- opsonified16
- opsonifies15
- opsonizing22
- opsonology16
- optatively18
- optimality17
- optimising15
- optimistic16
- optimizers23
- optimizing24
- optionally15
- optography21
- optologist13
- optomeninx21
- optometric16
- opulencies14
- opuntiales12
- oracularly15
- orangeades12
- orangebird14
- orangeleaf14
- orangeness11
- orangeries11
- orangeroot11
- orangewood15
- oranginess11
- orangoutan11
- orangutang12
- orangutans11
- oratorical12
- oratorlike14
- oratorship15
- oratresses10
- orbiculate14
- orbitelous12
- orbitoides13
- orbitolina12
- orbitolite12
- orbitostat12
- orbitotomy17
- orcharding17
- orchardist16
- orchardman18
- orchardmen18
- orchectomy22
- orchestian15
- orchestiid16
- orchestral15
- orchestras15
- orchestric17
- orchialgia16
- orchidales16
- orchideous16
- orchiditis16
- orchilytic20
- orchiocele17
- orchioncus17
- orchiopexy27
- orchiotomy20
- orchitises15
- ordainable13
- ordainment13
- ordanchite16
- ordinances13
- ordinarier11
- ordinaries11
- ordinarily14
- ordinarius11
- ordinately14
- ordinating12
- ordination11
- ordinative14
- ordonnance13
- ordovician16
- oregonians11
- oreillette10
- oreography19
- oreophasis15
- oreotragus11
- orfevrerie16
- organellae11
- organelles11
- organicism15
- organicist13
- organicity16
- organifier14
- organising12
- organismal13
- organismic15
- organistic13
- organizers20
- organizing21
- organogeny15
- organogold13
- organoiron11
- organolead12
- organology15
- organonomy16
- organonymy19
- organophil16
- organozinc22
- organzined21
- orguinette11
- orgulously14
- oribatidae13
- orichalcum19
- orientalia10
- orientally13
- orientated11
- orientates10
- orientator10
- orientness10
- origanized21
- origenical13
- originable13
- originally14
- originated12
- originates11
- originator11
- orinasally13
- oriskanian14
- orismology16
- ornamental12
- ornamented13
- ornamenter12
- ornateness10