Browse dictionary
312 entries · Filtering by “O”
- Obamaproper_noun
A surname of Luo (Kenyan) origin, most notably associated with Barack Obama, the 44th President of the United States (2009-2017).
- Octobernoun
The tenth month of the year, in the northern hemisphere usually considered the second month of autumn.
- Odinproper noun
(Norse mythology) The chief god of the Norse pantheon, associated with wisdom, war, death, poetry, and magic; also known as the Allfather.
- Ohioproper noun
A state in the Midwestern region of the United States, bordered by Lake Erie to the north.
- Oklahomaproper noun
A state in the South Central region of the United States.
- Olafproper noun
A masculine given name of Scandinavian origin.
- Olegproper noun
A masculine given name of Slavic origin, particularly common in Russia and Ukraine.
- Olgaproper noun
A feminine given name of Slavic origin, particularly common in Russia and Eastern Europe.
- Oliverproper noun
A masculine given name of Germanic origin.
- Oliviaproper noun
A feminine given name of Latin origin.
- Olivierproper noun
A masculine given name of French origin; the French form of Oliver.
- Olsenproper noun
A Scandinavian surname, particularly common in Denmark and Norway, meaning "son of Ole."
- Olympicadjective
Relating to the Olympic Games, the international athletic competition held every four years.
- Olympicsproper noun
The Olympic Games; an international multi-sport competition held every four years, featuring summer and winter events.
- Omarproper noun
A masculine given name of Arabic origin.
- Oregonproper_noun
A state in the Pacific Northwest region of the United States, bordered by Washington, Idaho, Nevada, California, and the Pacific Ocean.
- Orionproper_noun
A prominent constellation on the celestial equator, visible worldwide, representing a hunter with a belt of three stars.
- Orlandoproper_noun
A city in central Florida, United States, known for its theme parks including Walt Disney World and Universal Studios.
- Orleansproper_noun
A city in north-central France on the Loire River, historically significant as the site where Joan of Arc lifted the English siege in 1429.
- Orsonproper_noun
A male given name.
- Osakaproper_noun
A major city and commercial center in Japan, located in the Kansai region on Honshu Island.
- Osborneproper_noun
A surname of English origin.
- Oscarproper_noun
A male given name.
- Oskarproper_noun
A male given name of Germanic/Scandinavian origin, variant of Oscar.
- Oswaldproper_noun
A male given name of English origin.
- Otisproper_noun
A male given name.
- Ottoproper_noun
A male given name of Germanic origin.
- Owenproper_noun
A male given name of Welsh origin.
- Owensproper_noun
A surname of Welsh origin.
- Oxfordproper_noun
A city in southern England, home to the University of Oxford, the oldest university in the English-speaking world.
- Ozzyproper_noun
A nickname, often for names beginning with "Os-" such as Osborne, Oscar, or Oswald.
- oaknoun
A large deciduous tree with lobed leaves and acorns as fruit, valued for its hard, durable wood.
- oasisnoun
A fertile area in a desert where water is found, allowing vegetation to grow.
- oathnoun
A solemn promise, often invoking a divine witness, regarding one's future actions or behavior.
- oatmealnoun
Ground or rolled oat grains used to make porridge or in baking.
- obediencenoun
The act or practice of obeying; compliance with an order, request, or law.
- obedientadjective
Willing to comply with orders or requests; submissive to another's authority.
- obeyverb
To comply with the command, direction, or request of a person or law.
- objectnoun/verb
A material thing that can be seen and touched.
- objectionnoun
An expression or feeling of disapproval or opposition.
- objectionsnoun
Plural of objection; multiple expressions of disapproval or opposition.
- objectivenoun/adjective
A thing aimed at or sought; a goal.
- objectsnoun/verb
Plural of object; multiple material things that can be seen and touched.
- obligatedadjective
Required by legal, moral, or other rule; bound by duty or commitment.
- obligationnoun
An act or course of action to which a person is morally or legally bound.
- obligationsnoun
Plural of obligation; multiple duties or responsibilities one is bound to fulfill.
- obligeverb
To make someone legally or morally bound to do something.
- obligedadjective
Grateful or indebted to someone for a favor or service.
- oblivionnoun
The state of being unaware or unconscious of what is happening.
- obnoxiousadjective
Extremely unpleasant, especially in behavior or attitude.