English Words Starting With O

• ohmage

  nounLow
  /ˈəʊmɪdʒ/The electrical resistance measured in ohms.
• ohmic resistance

  nounLow
  /ˌəʊmɪk rɪˈzɪstəns/The property of a conductor that opposes the flow of electric current, defined by Ohm's Law as the ratio of voltage to current.
• ohmmeter

  nounLow
  /ˈəʊmˌmiːtə/An instrument for measuring electrical resistance in ohms.
• ohre

  nounExtremely Low (Rare/Obscure)
  /ˈəʊrə/A very specific type of large, aggressive species of predatory deer found in fantasy literature and gaming lore, known for its thick fur and formidable antlers.
• ohrid

  nounC2
  /ˈɒxrɪd/A city in North Macedonia, situated on the northeastern shore of Lake Ohrid, renowned for its historical, cultural, and natural significance.
• ohrmazd

  nounExtremely Rare
  /ˈɔːməzd/The supreme creator deity and embodiment of good in Zoroastrianism, also known as Ahura Mazda.
• ohtani rule

  nounLow
  /əʊˈtɑːni ˌruːl/An informal term referring to the exceptional or unprecedented nature of a person's dual talents, specifically derived from the baseball player Shohei Ohtani's unique ability as both an elite pitcher and hitter.
• oi

  adjectiveinterjectionnounC1
  /ɔɪ/An interjection used to attract someone's attention, express sharp disapproval, challenge, or mild protest.
• oidium

  nounVery Low
  /əʊˈɪdɪəm/A fungus (especially of the genus Oidium) that is a stage in the life cycle of certain powdery mildew fungi, causing plant diseases.
• oik

  nounLow
  /ɔɪk/A rude, uncultured, or socially inferior person.
• oil

  adjectivenounverbverb-transitiveA2
  /ɔɪl/A viscous, non-water-soluble liquid derived from natural sources (plants, animals, minerals) used for fuel, lubrication, cooking, or as a raw material.
• oil beetle

  nounLow
  /ˈɔɪl ˌbiːt(ə)l/A type of flightless beetle (genus Meloe) known for its ability to exude a yellowish, oily, and irritant fluid from its joints when threatened.
• oil burner

  nounMedium
  /ˈɔɪl ˌbɜː.nər/A device, appliance, or furnace designed to burn fuel oil for heating, power generation, or industrial processes.
• oil cake

  nounLow
  /ˈɔɪl ˌkeɪk/A solid, compacted mass of residue remaining after oil has been extracted from seeds, used as animal feed or fertilizer.
• oil city

  nounLow
  /ˈɔɪl ˈsɪti/A city whose economy is dominated by the oil industry, either through extraction, refining, or corporate headquarters.
• oil color

  nounC1
  /ˈɔɪl ˌkʌlə/A type of paint made by mixing pigments with a drying oil, typically linseed oil.
• oil derrick

  nounC1
  /ˈɔɪl ˌdɛr.ɪk/A tall framework or tower, usually made of steel, used over an oil well to support the drilling equipment and to lower and raise the drill bit.
• oil drum

  nounB1
  /ˈɔɪl ˌdrʌm/A large cylindrical metal container, typically with a capacity of around 200 litres, used for storing or transporting oil.
• oil field

  nounB2
  /ˈɔɪl fiːld/An area of land or sea under which there is a natural accumulation of petroleum that can be extracted.
• oil gilding

  nounlow
  /ˈɔɪl ˌɡɪldɪŋ/A traditional technique of applying gold leaf to a surface using an oil-based adhesive or mordant.

Showing 681–700 of 3187 words.