English Words Starting With I

• infinitive marker

  nounC2
  /tə/ (weak form), /tuː/ (strong form)A function word, typically 'to', placed before the base form of a verb to signal the infinitive construction (e.g., 'to go', 'to be').
• infinitize

  verb-transitiveVery Low
  /ɪnˈfɪnɪtaɪz/To treat something as having no bounds or limits.
• infinitude

  nounlow
  /ɪnˈfɪnɪtjuːd/The state or quality of being infinite; boundlessness.
• infinity

  nounC1
  /ɪnˈfɪn.ɪ.ti/The concept of having no limit, end, or boundary; an endless or immeasurable quantity.
• infirm

  adjectiveverb-transitiveC1
  /ɪnˈfɜːm/Physically weak, especially because of age or illness; not firm or stable.
• infirmarian

  nounVery Low
  /ɪnfəˈmɛːrɪən/A person, typically in a religious community, who is responsible for caring for the sick.
• infirmary

  nounC1
  /ɪnˈfɜː.mər.i/A room or building in a school, prison, monastery, or other institution where sick or injured people are cared for, especially a small hospital.
• infirmity

  nounC1/C2
  /ɪnˈfɜː.mə.ti/The state of being physically or mentally weak, especially because of old age or illness.
• infix

  adjectivenounverbverb-intransitiveverb-transitiveLow
  /ɪnˈfɪks/To insert or implant something, especially within a word; a linguistic term for a morpheme inserted within a word.
• inflame

  verbverb-intransitiveverb-transitiveC1
  /ɪnˈfleɪm/To provoke or intensify strong, often negative feelings such as anger, passion, or conflict; or to cause redness, swelling, and heat in a body part.
• inflammable

  adjectivenounB2
  /ɪnˈflæm.ə.bəl/Easily set on fire; capable of burning.
• inflammation

  nounC1
  /ˌɪn.fləˈmeɪ.ʃən/A localized physical condition in which part of the body becomes reddened, swollen, hot, and often painful, especially as a reaction to injury or infection.
• inflammatory bowel disease

  nounLow-Medium
  /ɪnˌflæm.ə.tər.i ˈbaʊ.əl dɪˌziːz/A medical term for chronic conditions involving inflammation of the digestive tract.
• inflatable

  adjectivenounB1
  /ɪnˈfleɪ.tə.bəl/Designed to be filled with air or gas so that it becomes larger and often rigid enough to use.
• inflate

  verbverb-intransitiveverb-transitiveB2
  /ɪnˈfleɪt/To fill something with air or gas, making it expand in size.
• inflation

  nounC1
  /ɪnˈfleɪʃ(ə)n/A sustained increase in the general level of prices for goods and services in an economy, resulting in a decline in the purchasing power of money.
• inflationary gap

  nounC1
  /ɪnˈfleɪ.ʃən.ər.i ɡæp/A macroeconomic situation where the total demand for goods and services in an economy exceeds the total supply at full employment levels, leading to upward pressure on prices.
• inflationary spiral

  nounC2
  /ɪnˌfleɪ.ʃən.ə.ri ˈspaɪə.rəl/A self-perpetuating cycle where rising prices (inflation) lead to demands for higher wages, which in turn cause businesses to raise prices further, fueling more inflation.
• inflationary universe

  nounC2
  /ɪnˈfleɪ.ʃən.ər.i ˈjuː.nɪ.vɜːs/A cosmological model in which the early universe underwent a period of extremely rapid exponential expansion.
• inflationism

  nounC1/C2
  /ɪnˈfleɪ.ʃən.ɪ.zəm/An economic policy or doctrine that deliberately encourages inflation, typically through increased money supply or deficit spending, with the aim of stimulating economic growth or reducing unemployment.

Showing 1621–1640 of 3621 words.