English Words Starting With O

• ossature

  nounC2
  /ˈɒs.ə.tʃə(r)/The underlying structure or framework, especially of something large and complex.
• ossein

  nounVery Low
  /ˈɒs.i.ɪn/The organic, collagen-rich matrix of bone that remains after the mineral components have been removed.
• osselet

  nounVery low
  /ˈɒsəlɛt/A small bone, particularly one of the small bones in horses' legs near the fetlock, or in other animals; historically refers to ankle bones used in games.
• osset

  nounExtremely rare / Archaic / Dialectal
  /ˈɒsɪt/A rare or dialectal verb meaning to clear away, remove obstructions, or make a passage.
• ossetia

  nounLow
  /ɒˈsɛtiə/A mountainous region in the central Caucasus, inhabited by the Ossetian people, and politically divided between Russia and Georgia.
• ossetian

  adjectivenounC1/C2 (Low-frequency, specialist term)
  /ɒˈsiːʃ(ə)n/Relating to the Ossetian people, their language (an Eastern Iranian language spoken primarily in Ossetia, a region in the central Caucasus), or their culture.
• ossetic

  adjectivenounC2/Rare/Technical
  /ɒˈsɛtɪk/The Iranian language spoken by the Ossetian people of the Caucasus region.
• ossi

  nounC2/Rare
  /ˈɒsi/A native or inhabitant of East Germany, especially one from the former German Democratic Republic (GDR).
• ossian

  nounVery Low
  /ˈɒʃən/A proper noun referring to a legendary Irish bard and warrior, Oisín, or the body of epic poetry attributed to him.
• ossicle

  nounLow
  /ˈɒsɪk(ə)l/A very small bone, especially one of those in the middle ear that transmit sound vibrations.
• ossietzky

  nounVery Low
  /ˌɒsiˈɛtski/Proper noun referring to Carl von Ossietzky, a German journalist and pacifist awarded the Nobel Peace Prize in 1935 for exposing German rearmament.
• ossification

  nounC1
  /ˌɒs.ɪ.fɪˈkeɪ.ʃən/The process of turning into bone or bone-like tissue.
• ossifrage

  nounObsolete / Very rare
  /ˈɒsɪfrɪdʒ/A large Old World vulture (Gypaetus barbatus), also called the bearded vulture or lammergeier, known for dropping bones to break them and eat the marrow.
• ossify

  verbverb-intransitiveverb-transitiveC2
  /ˈɒs.ɪ.faɪ/to turn into bone or a bone-like substance; to harden.
• ossining

  nounC1-C2 (Low frequency, culturally specific proper noun)
  /ˈɒsɪnɪŋ/A village in Westchester County, New York, United States, located along the Hudson River.
• osso bucco

  nounC1/C2
  /ˌɒsəʊ ˈbuːkəʊ/An Italian dish of braised veal shanks cooked with vegetables, white wine, and broth, traditionally garnished with gremolata.
• ossobuco

  nounLow (C2)
  /ˌɒsəʊˈbuːkəʊ/An Italian dish of braised veal shanks cooked with vegetables, white wine, and broth.
• ossuarium

  nounRare
  /ˌɒs.juˈeə.ri.əm/A container, room, or building for holding the bones of the dead.
• ossuary

  nounC2
  /ˈɒs.ju.ə.ri/A container, vault, building, or site for the respectful storage of human bones.
• ostectomy

  nounVery Low (C2+)
  /ɒˈstɛktəmi/The surgical removal or excision of a bone.

Showing 2201–2220 of 3187 words.