English Words Starting With I

• implicit function

  nounC2
  /ɪmˌplɪsɪt ˈfʌŋkʃən/In mathematics, a function defined by an equation where the dependent variable is not isolated on one side of the equation; a function whose value is expressed as part of a relationship rather than directly given.
• implicit function theorem

  nounVery low
  /ɪmˈplɪsɪt ˈfʌŋkʃən ˈθɪərəm/A fundamental theorem in mathematical analysis that guarantees the local existence of a function defined implicitly by an equation, under certain conditions.
• implied consent

  nounC1
  /ɪmˌplaɪd kənˈsent/Consent that is not explicitly given but inferred from a person's actions, inaction, silence, or the circumstances of a situation.
• implied warranty

  nounC1/C2
  /ɪmˌplaɪd ˈwɒrənti/A legal guarantee regarding the quality or suitability of goods that is not explicitly stated but arises automatically from the circumstances of sale, established by law rather than written agreement.
• implode

  verbverb-intransitiveverb-transitiveC1
  /ɪmˈpləʊd/To collapse or burst violently inwards; to fail or break down suddenly and completely from internal pressure or failure.
• implore

  verbverb-intransitiveverb-transitiveC1/C2
  /ɪmˈplɔː/To beg someone earnestly or desperately to do something.
• implosion

  nounC1
  /ɪmˈpləʊ.ʒən/The act or instance of collapsing or bursting violently inwards; a violent inward collapse, often under external pressure.
• implosion therapy

  nounLow (Specialist)
  /ɪmˈpləʊʒən ˈθɛrəpi/A psychological treatment method for anxiety disorders where a patient is rapidly and intensely exposed to their feared situation or object, without an option to avoid or escape, until the anxiety diminishes.
• implosive

  adjectivenounC2
  Relating to or being a sudden, inward collapse or bursting inward.
• impluvium

  nounVery Low (C2+)
  /ɪmˈpluːvɪəm/A square basin or pool in the centre of an ancient Roman atrium, used to collect rainwater.
• imply

  verbverb-transitiveC1
  /ɪmˈplaɪ/to suggest or express something indirectly without stating it explicitly.
• impolder

  verbVery Rare
  /ɪmˈpəʊldə/To reclaim land from the sea or a lake by building dikes and draining it, creating a polder.
• impolicy

  nounVery low (archaic/obsolete)
  /ɪmˈpɒl.ɪ.si/The quality or state of being unwise or contrary to sound policy; inexpediency.
• imponderabilia

  plural-nounC2+ / Very Rare
  /ɪmˌpɒn.dər.əˈbɪl.i.ə/Things that cannot be precisely measured, evaluated, or weighed; intangible factors or elements that are difficult to assess.
• imponderable

  adjectivenounLow
  /ɪmˈpɒn.dər.ə.bəl/Something that cannot be precisely measured, evaluated, or calculated; a factor whose influence or weight is impossible to determine.
• impone

  verb-transitiveC1
  /ɪmˈpəʊn/to impose, to place or set upon something; to establish authority or power.
• imponent

  nounVery Low
  /ɪmˈpəʊnənt/Imposing, commanding, or impressive in appearance or manner.
• import

  nounverbverb-intransitiveverb-transitiveB1
  /ˈɪmpɔːt/ (noun and verb)To bring (goods or services) into a country from abroad for commercial purposes.
• importance

  nounC1
  /ɪmˈpɔːt(ə)ns/The quality or state of being significant, valuable, or worthy of attention.
• importance of being earnest, the

  nounRare
  /ði ɪmˈpɔːtəns əv ˈbiːɪŋ ˈɜːnɪst/The title of Oscar Wilde's classic 1895 play; literally, the significance of being named Ernest (or of behaving sincerely).

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