Inclusion is the act of including someone in something, like a school, club, or team.

If you are familiar with the word include — meaning to make someone or something a part of something larger — then inclusion should make sense. You might be happy at your inclusion on the school's volleyball team. The inclusion of an actor in a movie is exciting. When there's a new President, people wait and see who will earn inclusion in the cabinet. In biology, an inclusion body is a very small body found within another on the cellular level.

Definitions of inclusion
  1. noun
    the act of including
    see moresee less
    including by incorporating
    annexation, appropriation
    incorporation by joining or uniting
    type of:
    increase, step-up
    the act of increasing something
  2. noun
    the state of being included
    see moresee less
    the state of being excluded
    the state of taking in or encircling
    including entirely
    type of:
    situation, state of affairs
    the general state of things; the combination of circumstances at a given time
  3. noun
    the relation of comprising something
    “he admired the inclusion of so many ideas in such a short work”
    synonyms: comprehension
    see moresee less
    type of:
    a connection of inclusion or containment
  4. noun
    any small intracellular body found within another (characteristic of certain diseases)
    “an inclusion in the cytoplasm of the cell”
    synonyms: cellular inclusion, inclusion body
    see moresee less
    plasmid, plasmid DNA
    a small cellular inclusion consisting of a ring of DNA that is not in a chromosome but is capable of autonomous replication
    Russell's body, cancer body
    an inclusion body found in plasma cells in cases of cancer
    type of:
    an individual 3-dimensional object that has mass and that is distinguishable from other objects
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