English Words Starting With O

• organzine

  nounVery Low (Technical/Historical)
  /ˈɔːɡ(ə)nziːn/A type of raw silk thread or yarn, thrown by hand or machine, consisting of two or more threads tightly twisted together in the opposite direction to that of the original twist of the individual threads.
• orgasm

  nounverb-intransitiveC1
  /ˈɔː.ɡæz.əm/The climax or peak of sexual excitement, characterized by intense physical pleasure and release.
• orgeat

  nounVery Low
  /ˈɔːʒɑː/A sweet, non-alcoholic syrup made from almonds, sugar, and orange flower water, used as a flavoring in cocktails and beverages.
• orgetorix

  nounRare / Historical
  /ɔːˈdʒɛtərɪks/A historical name of a Gallic chieftain, not a common English word.
• orgone

  nounVery Low
  /ˈɔːɡəʊn/A hypothetical universal life force or cosmic energy proposed by Wilhelm Reich, believed to be a primal, creative substance present in all living things and the atmosphere.
• orgone box

  nounVery Low
  /ˈɔː.ɡəʊn ˌbɒks/A cabinet-like device, also known as an accumulator, constructed from alternating layers of organic and inorganic materials, intended to collect and concentrate a hypothetical life-force energy called orgone for therapeutic purposes.
• orgone energy

  nounVery Low
  /ˌɔːɡəʊn ˈenədʒi/A hypothetical universal life force or cosmic energy proposed by Wilhelm Reich, claimed to be present in all living things and in the atmosphere.
• orgy

  nounC1
  /ˈɔː.dʒi/A wild party involving excessive drinking, unrestrained sexual activity, and lack of control.
• oribi

  nounVery Low / Technical
  /ˈɒrɪbi/A small, slender antelope found in sub-Saharan Africa.
• orichalcum

  nounVery Low
  /ˌɒrɪˈkælkəm/A legendary, precious metal, often described as a golden or bronze-like alloy, mentioned in ancient texts.
• oriel

  nounC2
  /ˈɔː.ri.əl/A large upper-storey bay window supported by brackets or corbels, projecting from the wall of a building.
• oriel window

  nounC2
  /ˈɔːriəl ˈwɪndəʊ/A type of window that projects from the main wall of a building, supported by a corbel or bracket, typically from an upper floor.
• orient

  adjectivenounverbverb-intransitiveverb-transitiveB2
  /ˈɔː.ri.ent/To align or position something in relation to a specific direction or point of reference.
• orient express

  nounC1
  /ˌɔː.ri.ənt ˈek.spres/A famous luxury train service that historically connected Western Europe with Istanbul.
• oriental

  adjectivenounMedium
  /ˌɔːriˈɛntl/Relating to the countries, peoples, or cultures of East Asia, particularly China, Japan, and Korea.
• oriental alabaster

  nounLow
  /ˌɔːriˈentl ˈæləbɑːstə/A fine-grained, translucent variety of gypsum or calcite, historically sourced from regions like Egypt and used for carvings and ornaments.
• oriental almandine

  nounLow
  /ˌɔː.riˈen.təl ˈæl.mən.diːn/An outdated and now considered inaccurate gemological term for a variety of corundum (aluminum oxide) with a deep red color, chemically and structurally distinct from true almandine (an iron-aluminum silicate garnet).
• oriental beetle

  nounLow
  /ˌɔː.riˈen.təl ˈbiː.təl/A specific species of scarab beetle (Anomala orientalis) originally from Asia, now an invasive pest in other regions, particularly damaging to turfgrass and ornamental plants.
• oriental carpet

  nounC1
  /ˌɔː.riˈen.təl ˈkɑː.pɪt/A handwoven carpet or rug originating from Asia, particularly the Middle East, Central Asia, or the Caucasus, characterized by intricate patterns and rich colors.
• oriental cat's eye

  nounVery Low
  /ˌɔː.riˈen.təl ˌkæts ˈaɪ/A specific variety of chatoyant gemstone, typically a chrysoberyl or similar mineral, exhibiting a sharp band of reflected light reminiscent of a cat's eye, specifically associated with origins or styles from Asia.

Showing 1901–1920 of 3187 words.