English Words Starting With I

• impawn

  verb-transitiveVery Low (Literary/Archaic)
  /ɪmˈpɔːn/To pawn or pledge as security for a loan.
• impeach

  nounverbverb-transitiveC1
  /ɪmˈpiːtʃ/to formally accuse a public official of a serious crime or misconduct while in office.
• impeachment

  nounC1
  /ɪmˈpiːtʃmənt/The formal process of charging a public official (especially a head of state or government) with a serious crime or misconduct while in office, potentially leading to their removal.
• impearl

  verbverb-transitiveRare
  /ɪmˈpɜːl/To form or decorate with pearls, or to resemble pearls in appearance (e.g., dewdrops).
• impedance

  nounLow (Specialist)
  /ɪmˈpiːd(ə)ns/The measure of opposition that a circuit presents to a current when a voltage is applied, a complex combination of resistance and reactance.
• impedance matching

  nounLow (Technical/Specialist)
  /ɪmˈpiːdəns ˈmætʃɪŋ/The process of making the electrical impedance of a source equal to that of a load to maximize power transfer or minimize signal reflection.
• impede

  verbverb-transitiveC1
  /ɪmˈpiːd/To delay or stop the progress of something or someone.
• impeded

  adjectiveverbB2
  /ɪmˈpiːdɪd/Slowed down or blocked the progress of something.
• impediment

  nounB2
  /ɪmˈped.ɪ.mənt/Something that makes it difficult or impossible to move, progress, or succeed; a hindrance or obstruction.
• impedimenta

  plural-nounC2
  /ɪmˌpedɪˈmentə/Equipment or supplies that serve as a hindrance or obstruction, especially when transporting them.
• impedor

  nounExtremely Rare / Technical
  /ɪmˈpiːdə/An electronic component, specifically a type of complex impedance, used in circuit theory.
• impel

  verbverb-transitiveC1
  /ɪmˈpel/To drive, force, or urge someone to do something through a strong feeling or internal pressure.
• impellent

  adjectivenounC2 / Extremely Rare
  /ɪmˈpel.ənt/Driving or urging forward; something that propels or motivates.
• impeller

  nounC2
  /ɪmˈpɛlə/A rotating device with vanes or blades used to force a fluid or gas to move in a desired direction, typically inside a pump, compressor, or engine.
• impend

  verbverb-intransitiveC2
  /ɪmˈpɛnd/to be about to happen, especially something threatening or significant
• impenetrability

  nounC2
  /ɪmˌpɛnɪtrəˈbɪləti/The quality or state of being impossible to enter, pass through, or understand.
• imperative

  adjectivenounC1
  /ɪmˈper.ə.tɪv/Extremely important and needing to be done or given immediate attention.
• imperator

  nounC2 / Very Low Frequency
  /ˌɪmpəˈrɑːtə(r)/A supreme leader, especially an emperor or absolute ruler; historically, a commander in chief of the Roman army.
• imperatriz

  nounLow
  /ɪmˈpɛrətrɪs/The female equivalent of an emperor; a woman who rules an empire, either in her own right or as the wife of an emperor.
• imperceptible

  adjectivenounC1/C2
  /ˌɪmpəˈseptəbl/Too slight, gradual, or subtle to be perceived by the senses or mind.

Showing 721–740 of 3621 words.