English Words Starting With I

• imperception

  nounLow (C2)
  /ˌɪmpəˈsɛpʃ(ə)n/The state of being unaware or not perceiving; a failure to notice or understand something.
• imperfect

  adjectivenounB2
  /ɪmˈpɜːfɪkt/Not perfect; having faults, flaws, or deficiencies.
• imperfect competition

  nounC1-C2
  /ɪmˈpɜːfɪkt ˌkɒmpəˈtɪʃ(ə)n/A market condition where individual firms have some control over the price of their product because products are differentiated, there are barriers to entry, or information is not freely available to all participants.
• imperfect fungus

  nounC1/C2 - Technical/Specialized
  /ɪmˈpɜːfɪkt ˈfʌŋɡəs/A member of a polyphyletic group of fungi that do not have a known sexual reproductive stage in their life cycle, previously classified together but now understood to be unrelated fungi whose sexual forms either don't exist or haven't been discovered.
• imperfect stage

  nounLow/C2
  /ɪmˈpɜːfɪkt steɪdʒ/In mycology (fungal biology), a stage in the life cycle of fungi where reproduction occurs asexually, typically via spores called conidia. The fungi are classified in the artificial group Deuteromycota.
• imperfection

  nounB2
  /ˌɪmpəˈfɛkʃn/A fault, blemish, flaw, or shortcoming; the state or condition of not being perfect.
• imperfective

  adjectivenounC2 / Very Low
  /ˌɪmpəˈfɛktɪv/A grammatical aspect indicating an ongoing, habitual, or repeated action, without reference to its completion.
• imperforate

  adjectivenounC1
  /ɪmˈpɜːfərət/Not perforated; lacking openings, holes, or a line of separation.
• imperia

  nounC2
  /ɪmˈpɪə.ri.ə/supreme, absolute power; dominion; empire.
• imperial

  adjectivenounB2
  /ɪmˈpɪə.ri.əl/relating to an empire or an emperor/empress
• imperial beach

  nounLow
  /ɪmˈpɪə.ri.əl biːtʃ/A proper noun referring to a specific city in San Diego County, California, USA, known as the southernmost beach city in the western United States.
• imperial eagle

  nounC1/C2
  /ɪmˌpɪə.ri.əl ˈiː.ɡəl/A large, majestic bird of prey (specifically the species Aquila heliaca or Aquila adalberti), notable for its size, powerful build, and status as a national symbol in some countries, often historically associated with empires.
• imperial gallon

  nounLow
  /ɪmˌpɪə.ri.əl ˈɡæl.ən/A unit of volume in the British imperial system, equal to 4.54609 litres.
• imperial jade

  nounC2
  /ɪmˈpɪə.ri.əl dʒeɪd/A specific, highly valued type of jade, primarily nephrite, characterized by its intense emerald-green colour, translucency, and fine texture.
• imperial moth

  nounLow
  /ɪmˌpɪə.ri.əl ˈmɒθ/A large, striking North American moth of the species *Eacles imperialis*, characterized by its yellow coloration, distinctive purple-brown markings, and significant size.
• imperial presidency

  nounC2
  /ɪmˌpɪə.ri.əl ˈprez.ɪ.dən.si/A term describing a U.S. presidency that has expanded its powers beyond constitutional limits, often acting with minimal congressional or judicial oversight.
• imperial valley

  nounLow
  /ɪmˈpɪə.ri.əl ˈvæl.i/A major agricultural region in southeastern California, USA.
• imperial war museum

  nounC1
  /ɪmˈpɪə.ri.əl wɔː mjuːˈziː.əm/A major UK institution with branches in London, Manchester, and other locations, dedicated to documenting and exhibiting the history and impact of modern conflict.
• imperialism

  nounLow
  /ɪmˈpɪə.ri.ə.lɪ.zəm/A policy of extending a country's power and influence through diplomacy or military force.
• imperil

  verbverb-transitiveC1
  /ɪmˈpɛr(ə)l/To put someone or something in danger, at risk, or in jeopardy.

Showing 741–760 of 3621 words.