The adjective internal describes something on the inside. If you're tempted by a second piece of cake, you may have an internal battle with yourself over whether you should eat the cake or not.

Internal can also describe something that takes place within a country or a group. You pay your taxes to the Internal Revenue Service, and politicians argue about how to spend your tax dollars when they discuss the country's internal affairs. You may have to write internal reports for your boss––reports that aren't supposed to be seen outside the company.

Definitions of internal
  1. adjective
    located inward
    “"an internal sense of rightousness"- A.R.Gurney,Jr.”
    synonyms: inner, interior
    relating to or existing in the mind or thoughts
  2. adjective
    innermost or essential
    “the internal contradictions of the theory”
    synonyms: inner, intimate
    intrinsic, intrinsical
    belonging to a thing by its very nature
  3. adjective
    occurring within an institution or community
    synonyms: intragroup
    carried on within the bounds of an institution or community
  4. adjective
    inside the country
    “the nation's internal politics”
    synonyms: home, interior, national
    of concern to or concerning the internal affairs of a nation
  5. adjective
    happening or arising or located within some limits or especially surface
    internal organs”
    internal mechanism of a toy”
    internal party maneuvering”
    inside or closer to the inside of the body
    inside and toward a center
    (of conflict) within a group or organization
    situated within or belonging solely to the organ or body part on which it acts
    relating to or being on the side closer to the center or within a defined space
    see moresee less
    happening or arising or located outside or beyond some limits or especially surface
    being on or toward the outside of the body
    originating or belonging beyond some bounds:"the outside world"
    relating to or being on or near the outer side or limit
    show more antonyms...
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week