English Words Starting With O

• osculum

  nounC2
  /ˈɒskjʊləm/A small mouth or opening.
• osee

  nounExtremely Rare / Obsolete / Dialectal
  /əʊˈsiː/An archaic or dialectal variant of the verb 'to see', meaning to perceive with the eyes.
• osel

  nounLow
  /ˈəʊs(ə)l/A donkey; a domesticated hoofed mammal of the horse family with long ears and a braying call, used as a beast of burden.
• osgood

  nounLow
  /ˈɒzɡʊd/A surname; in specific contexts, refers to Osgood-Schlatter disease, a knee condition affecting adolescents.
• osh

  nounVery Low (Highly informal, primarily used in specific online communities or regional colloquial speech)
  /ɒʃ/An interjection used to express surprise, sudden realization, or mild frustration; an exclamation similar to 'oh' or 'whoa' but often indicating a slight mistake or oversight.
• osha

  nounSpecialised
  /ˈəʊʃə/An acronym for the Occupational Safety and Health Administration, the U.S. federal agency responsible for enforcing workplace safety and health standards.
• oshawa

  nounVery low
  /ˈɒʃəwə/A city in Ontario, Canada.
• oshkosh

  nounLow
  /ˈɒʃkɒʃ/A place name referring to a city in Wisconsin, USA, known as the city's name or the name of a company based there.
• oshogbo

  nounVery Low (Proper Noun)
  /ɒˈʃɒɡbəʊ/A city in southwestern Nigeria, known as a cultural and religious centre for the Yoruba people, particularly associated with the annual Osun-Osogbo festival.
• oshun

  nounVery Low
  /ˈɒʃʊn/ (for the deity); /ˈəʊʃ(ə)n/ (if intended as 'ocean')Alternative spelling of 'ocean', used in certain religious or cultural contexts, particularly to refer to a major body of salt water.
• osier

  nounC2
  /ˈəʊzɪə/A type of willow tree (Salix viminalis) or its flexible shoots, particularly used in basket weaving.
• osijek

  nounVery Low
  /ˈɒsɪjɛk/The name of a city in Croatia.
• osiris

  nounC2
  /əʊˈsaɪ.rɪs/The Egyptian god of the afterlife, resurrection, and fertility, ruler of the underworld.
• oskaloosa

  nounVery Low
  /ˌɒskəˈluːsə/A proper noun; the name of a city in the state of Iowa, USA.
• oskemen

  nounVery Low
  /ɒsˈkɛmən/A city in Kazakhstan, the administrative centre of the East Kazakhstan Region.
• osler

  nounLow
  /ˈɒzlə/A proper noun referring to Sir William Osler (1849-1919), a prominent Canadian physician and one of the founders of modern medicine, known for his contributions to medical education and bedside teaching.
• oslo

  nounB1
  /ˈɒzləʊ/The capital and largest city of Norway, located at the head of Oslofjord.
• oslo fiord

  nounC2
  /ˈɒzləʊˌfjɔːd/The major fjord in southeastern Norway on which the capital city, Oslo, is situated.
• osman

  nounVery Low
  /ˈɒzmən/A proper noun referring to a masculine given name of Arabic origin, meaning 'servant of God'.
• osman i

  nounB2/C1
  /ɒzˈməʊ.sɪs/The gradual, often unconscious, process of learning or absorbing information through constant exposure.

Showing 2161–2180 of 3187 words.