English Words Starting With I

• ideologue

  nounC1
  /ˈaɪ.di.ə.lɒɡ/A person who is rigidly and uncompromisingly devoted to a set of ideas or ideology.
• ideology

  nounC1
  /ˌaɪ.diˈɒl.ə.dʒi/A system of ideas, beliefs, and values that forms the basis of a political or economic theory, or of a group's worldview.
• ideopolis

  nounVery Low
  /ˌaɪ.diˈɒp.əl.ɪs/A city or metropolitan area whose economy and identity are primarily based on the production and exchange of ideas, knowledge, and innovation, rather than traditional manufacturing or industry.
• ides

  nounVery Low
  /aɪdz/In the ancient Roman calendar, the 15th day of March, May, July, and October, or the 13th day of the other months, marking the middle of the month.
• idhi

  nounExtremely rare to non-existent
  /ˈɪd.i/The word 'idhi' is not a standard English word. In the absence of a standardized dictionary entry, the following data is provided as a potential model for educational purposes, based on the interpretation of 'idhi' as a potential rare or hypothetical term.
• idioblast

  nounLow/Very Rare
  /ˈɪd.i.ə(ʊ).blɑːst/A specialized plant cell that differs markedly in form, function, or content from neighboring cells in the same tissue.
• idiocrasy

  nounVery Low (Rare)
  /ˌɪdɪˈɒkrəsi/A characteristic, habit, or mannerism peculiar to a specific person or group.
• idiocy

  nounC1
  /ˈɪd.i.ə.si/Extremely stupid behavior or action; a state of utter foolishness.
• idiodynamics

  nounVery Low
  /ˌɪd.i.əʊ.daɪˈnæm.ɪks/The study of individual psychological dynamics; the unique patterns of thought, emotion, and behavior within a single person.
• idioglossia

  nounVery Low
  /ˌɪdɪə(ʊ)ˈɡlɒsɪə/A private language or unique speech form developed and shared by a small group, typically very young siblings or twins.
• idiogram

  nounVery Low / Specialised
  /ˈɪd.i.əʊ.ɡræm/A diagrammatic or schematic representation of a chromosome set, showing chromosomes arranged in order of size and centromere position.
• idiograph

  nounVery Rare / Technical
  /ˈɪdɪə(ʊ)ɡrɑːf/A distinctive or private symbol, mark, or signature used to represent something (especially a person, company, or concept) in a unique way.
• idiolect

  nounC1/C2
  /ˈɪd.i.ə.lekt/The distinctive speech habits of a particular individual.
• idiom

  nounB2
  /ˈɪd.i.əm/A group of words whose meaning is different from the meanings of the individual words.
• idiopathy

  nounVery Low / Technical
  /ˌɪdɪˈɒpəθi/A disease or condition that arises spontaneously or from an unknown cause.
• idiophone

  nounC2
  /ˈɪd.i.ə.fəʊn/A musical instrument that produces sound primarily by the vibration of the instrument itself, without strings, membranes, or a column of air.
• idioplasm

  nounVery Low
  /ˈɪdɪə(ʊ)plæzəm/The hereditary material or germ plasm within a cell.
• idiosyncrasy

  nounC1
  /ˌɪd.i.əʊˈsɪŋ.krə.si/A mode of behaviour or way of thought peculiar to an individual.
• idiot

  nounB2
  /ˈɪd.i.ət/A person of very low intelligence; a stupid person.
• idiot board

  nounRare/Specialised
  /ˈɪd.i.ət bɔːd/A large cue card or placard used to show lines or prompts to a performer who is being filmed or is on live television.

Showing 281–300 of 3621 words.