English Words Starting With I

• involute

  adjectivenounverbverb-intransitiveC2
  /ˈɪnvəluːt/Intricately folded, coiled, or curved inwards; or to become such.
• involute gear

  nounLow (Technical/Specialized)
  /ˈɪnvəluːt ɡɪə/A type of gear where the tooth profile is defined by an involute curve, ensuring smooth, constant-velocity motion.
• involute teeth

  nounC2
  /ˈɪnvəluːt tiːθ/A specific tooth profile in gears where the flank contour is an involute curve, ensuring constant angular velocity and contact.
• involution

  nounLow
  /ˌɪnvəˈluːʃ(ə)n/The process of becoming involuted; a complex form, complication; a part that is folded inward.
• involutional

  adjectivenounVery Low
  /ˌɪnvəˈljuːʃ(ə)n(ə)l/Relating to a process of turning or folding inwards, or a period of decline and complication.
• involutional melancholia

  nounVery Low
  /ˌɪnvəˈluːʃ(ə)n(ə)l ˌmɛlənˈkəʊlɪə/An outdated psychiatric diagnosis referring to a severe form of depression occurring in middle to late adulthood, historically thought to be linked to the physiological and psychological changes of aging.
• involve

  verbverb-transitiveHigh (B1 level word)
  /ɪnˈvɒlv/To include something or someone as a necessary part or result; to have or be affected by.
• involvement

  nounB2
  /ɪnˈvɒlvmənt/The state or condition of taking part in an activity, situation, or relationship, or the act of causing someone to participate in something.
• invultuation

  nounObscure
  /ɪnˌvʌltʃuˈeɪʃən/A term for the act or practice of creating a doll or image to represent a person, used in witchcraft with the intention of harming them through sympathetic magic.
• inwale

  nounVery Low
  /ˈɪn.weɪl/An inner, reinforcing strip of wood running along the inside of a boat's gunwale.
• inwall

  nounverb-transitiveObsolete/Rare
  /ɪnˈwɔːl/to enclose within or as if within walls.
• inward

  adjectiveadverbnounB2
  /ˈɪnwəd/Directed towards the inside; moving towards or facing inside.
• inward dive

  nounC1+
  /ˈɪnwəd daɪv/A forward-facing dive in which the diver springs backward from the diving board and rotates toward the board.
• inward light

  nounLow
  /ˈɪnwəd laɪt/A spiritual guidance or divine illumination perceived within oneself, particularly in Quaker theology.
• inwardness

  nounC2 (Very Low Frequency)
  /ˈɪnwədnəs/The inner nature, essence, or quality of something; the quality of being inward or internal.
• inwards

  adverbplural-nounC1
  /ˈɪn.wədz/towards the inside or centre of something.
• inweave

  verbverb-transitiveLow frequency / Formal / Literary
  /ɪnˈwiːv/To weave or intertwine something into a fabric, text, or structure.
• inwind

  verb-transitiveExtremely Rare / Archaic
  /ɪnˈwaɪnd/To unwind or unravel something; a less common, often archaic or poetic variant of 'unwind.'
• inwrap

  verbverb-transitiveLow (archaic or poetic register; largely superseded by 'enwrap')
  /ɪnˈrap/to cover or surround something completely, especially by folding or winding a flexible material around it.
• inwreathe

  verb-transitiveVery low (archaic/poetic)
  /ɪnˈriːð/To encircle, adorn, or surround with a wreath or as if with a wreath; to wreathe in or around.

Showing 2861–2880 of 3621 words.