English Words Starting With O

• ofuro

  nounLow
  /əʊˈfʊə.rəʊ/A traditional Japanese deep soaking tub, often made of wood, used for bathing and relaxation.
• ofwat

  nounLow
  /ˈɒfwɒt/The regulator for water and sewerage services in England and Wales.
• ogaden

  nounVery Low
  /ˈɒɡədɛn/A historical and geographical region in southeastern Ethiopia, also historically referred to as the Somali Region.
• ogam

  nounVery Rare
  /ˈɒɡəm/An ancient Celtic alphabet, primarily used for inscriptions on stone, found mainly in Ireland and parts of Britain.
• oganesson

  nounC2
  /ˌɒɡəˈnɛsɒn/A synthetic chemical element with atomic number 118, a radioactive noble gas.
• ogasawara gunto

  nounC1
  /ˌɒɡ.ə.səˈwɑː.rə ˈɡʊn.təʊ/The Japanese name for the Bonin Islands, a remote volcanic archipelago in the Pacific Ocean, administered as part of Tokyo, Japan.
• ogasawara jima

  plural-nounVery Low (Geographic/Technical)
  /ˌɒɡəsəˈwɑːrə ˈdʒiːmə/A Japanese archipelago in the Pacific Ocean, also known as the Bonin Islands, administratively part of Tokyo.
• ogbomosho

  nounRare (as an English lexical item); frequent in Nigerian and West African contexts.
  /ˌɒɡbəˈmɒʃəʊ/A large city in southwestern Nigeria, in Oyo State.
• ogburn

  nounVery Low (Specialist/Academic)
  /ˈɒɡbɜːn/A surname of Irish origin, often used to refer to American sociologist William Fielding Ogburn (1886-1959) who developed theories on social change and technological determinism.
• ogden

  nounVery Low
  /ˈɒɡdən/A proper noun, primarily a surname and a toponym.
• ogdensburg

  nounC2
  /ˈɒɡdənzbɜːɡ/A place name; a city in northern New York State, USA, on the St. Lawrence River.
• ogdoad

  nounVery low
  /ˈɒɡdəʊæd/A group or set of eight.
• ogdon

  nounRare / Proper Noun
  /ˈɒɡdən/A proper noun; a British surname and personal name.
• ogee

  nounLow
  /ˈəʊdʒiː/A double curve, shaped like an elongated letter 'S', consisting of a concave arc flowing into a convex arc.
• ogee arch

  nounRare (Specialist)
  /ˌəʊdʒiː ˈɑːtʃ/A pointed arch, each side of which is an S-shaped curve (a convex arc above a concave arc).
• ogeechee

  nounRare
  /əʊˈɡiːtʃiː/A specific river in the southeastern United States or the lime tree (Nyssa ogeche) native to that region.
• ogen melon

  nounLow-frequency (Specialist/Lexical Item)
  /ˌəʊɡən ˈmɛlən/A type of small, oval-shaped melon with a smooth, yellow-green skin, sweet orange flesh, and a distinctive aromatic flavour.
• ogham

  nounC2 (Proficient User)
  /ˈɒɡəm/An early medieval alphabet used primarily to write the Irish language, consisting of a series of lines and notches carved along a central stem-line.
• ogilvie

  nounLow
  /ˈəʊɡəlvi/A Scottish surname of Gaelic origin, originally a personal name and later a clan name.
• ogive

  nounC2
  /ˈəʊ.dʒaɪv/A pointed, often Gothic, arch formed by two intersecting arcs.

Showing 641–660 of 3187 words.