English Words Starting With O

• oka

  nounRare / Archaic / Specialized (C2)
  /ˈəʊkə/An archaic or historical unit of weight used in Turkey and nearby regions, equivalent to approximately 1.28 kilograms (2.8 pounds).
• okanagan

  nounRare
  /ˌəʊkəˈnæɡən/A geographical term referring to a region, a lake, and a river system in British Columbia, Canada, and Washington State, USA. Most commonly used as a proper noun to denote this specific place and its associated culture.
• okanagan lake

  nounLow
  /ˌəʊkəˈnɑːɡən leɪk/A large, deep lake located in the Okanagan Valley of British Columbia, Canada.
• okapi

  nounVery Low
  /əʊˈkɑːpi/A large, elusive, forest-dwelling African mammal, related to the giraffe, but with a much shorter neck, a dark reddish-brown body, and striped hindquarters and front legs.
• okavango

  nounC2 (Low frequency - Very rare in everyday conversation)
  /ˌəʊkəˈvæŋɡəʊ/A major river in Southern Africa, flowing through Angola, Namibia, and Botswana.
• okayama

  nounVery low (Geographic reference, uncommon outside specific contexts)
  /ˌəʊkəˈjɑːmə/A proper noun referring to a prefecture and its capital city in the Chūgoku region of western Japan.
• okazaki

  nounVery low
  /ˌəʊ.kəˈzɑː.ki/A fragment of newly synthesized DNA formed on the lagging strand during replication.
• oke

  nounHigh (as part of 'okay' family)
  /ˈəʊ.keɪ/An informal spelling or pronunciation of 'okay', expressing agreement, acceptance, or confirmation.
• okeechobee

  nounLow
  /ˌəʊkiˈtʃəʊbi/A large freshwater lake in south-central Florida, USA.
• okeechobee waterway

  nounLow
  /ˌəʊkɪˈtʃəʊbi ˈwɔːtəweɪ/A federally authorized and maintained navigable water route across Florida, connecting the Atlantic Ocean (via the St. Lucie River) with the Gulf of Mexico (via the Caloosahatchee River), utilizing Lake Okeechobee as a central link.
• okefenokee swamp

  nounC2
  /ˌəʊkɪfɪˈnəʊkiː swɒmp/A vast, shallow, peat-filled wetland and wildlife refuge straddling the Georgia-Florida border in the southeastern United States.
• okeghem

  nounC2 (Extremely Rare/Very Specialized)
  /ˈɒkəɡɛm/A proper noun referring to Johannes Ockeghem (c. 1410–1497), a Franco-Flemish composer of the early Renaissance.
• oken

  nounB1
  /ˈəʊkən/Wide open, exposed, or uncovered.
• okhotsk

  nounVery low / Obscure
  /əʊˈkɒtsk/A proper noun referring to a sea and a geographical region in the Russian Far East.
• okhotsk plate

  nounC1/C2 (Very Low Frequency, specialized academic/scientific term)
  /əʊˈkɒtsk ˈpleɪt/A minor tectonic plate located in the northern Pacific Ocean, underlying the Sea of Okhotsk and parts of eastern Russia.
• okie

  nounC1+ (Low frequency, highly context-specific)
  /ˈəʊ.ki/A person from Oklahoma, especially one who migrated westward during the Dust Bowl era.
• okinawa

  nounC1
  /ˌɒkɪˈnɑːwə/The name of a prefecture in southwestern Japan, consisting of numerous islands in the Ryukyu Archipelago.
• oklahoma

  nounLow
  /ˌəʊkləˈhəʊmə/A state in the south-central United States.
• oklahoma city

  nounB2
  /ˌəʊ.klə.ˈhəʊ.mə ˈsɪt.i/The capital and largest city of the U.S. state of Oklahoma.
• okmulgee

  nounlow
  /ˈɒkmʌlɡiː/A county and city in the state of Oklahoma, USA.

Showing 761–780 of 3187 words.