in·​clu·​sion | \ in-ˈklü-zhən How to pronounce inclusion (audio) \

Definition of inclusion

1 : the act of including : the state of being included
2 : something that is included: such as
a : a gaseous, liquid, or solid foreign body enclosed in a mass (as of a mineral)
b : a passive usually temporary product of cell activity (such as a starch grain) within the cytoplasm or nucleus
3 : the act or practice of including students with disabilities with the general student population Inclusion refers to a variety of integration approaches, but the goal is to blend special education students into the traditional classroom.— Suevon Lee sometimes used before a noun an inclusion classroom/school
4 : the act or practice of including and accommodating people who have historically been excluded (as because of their race, gender, sexuality, or ability) … academic libraries have traditionally struggled to address problems of equity, diversity and inclusion. The low representation of people of color in library staff has been a particular shortcoming, despite many initiatives to attract minority staff to the field.— Lindsay McKenzie Tech workers say they are more interested in diversity and are more willing to work to promote inclusion in their workplace …— Jessica Guynn Meaningful civic inclusion even now eludes many of our fellow citizens who are recognizably of African descent.— Glenn C. Loury
5 mathematics : a relation between two classes (see class sense 3c) that exists when all members of the first class are also members of the second — compare membership sense 3

Other Words from inclusion

inclusionary \ in-​ˈklü-​zhə-​ner-​ē How to pronounce inclusion (audio) \ adjective

Examples of inclusion in a Sentence

Recent Examples on the Web Environmentalists said Biden’s inclusion of mature forests was crucial if the order is to be meaningful, since so many old growth stands already were cut over the past half-century, particularly in the Pacific Northwest. Matthew Brown And Matthew Daly, Anchorage Daily News, 20 May 2022 Some politicians and activists of late have made accusations that teaching about race and inclusion in school is divisive, or a way to indoctrinate students. Kiara Alfonseca, ABC News, 19 May 2022 Access and inclusion training for staff and clearly marked, prominent signage for accessible routes into venues are among the demands. Mia Galuppo, The Hollywood Reporter, 19 May 2022 With the help of the characters Charity Chihuahua and Grace the Greyhound, Learning Experience teachers gave their students lessons on philanthropy, kindness, and inclusion. Catherine Garcia, The Week, 19 May 2022 Absent a reduction in underlying gender stereotypes diversity and inclusion initiatives may have unintended negative consequences. Michele Frank, Fortune, 18 May 2022 Savannah wanted to know what those buzzwords – affirmation, safe spaces, inclusion – actually looked like in real life. Ruth Serven Smith |, al, 16 May 2022 In recent years, the music industry has started to make changes and adjustments in efforts towards more inclusion. Dan Rys, Billboard, 13 May 2022 Lee Jourdan retired as Chevron’s chief diversity and inclusion officer. Washington Post, 10 May 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'inclusion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of inclusion

15th century, in the meaning defined at sense 1

History and Etymology for inclusion

Latin inclusion-, inclusio, from includere

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Time Traveler for inclusion

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The first known use of inclusion was in the 15th century

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Dictionary Entries Near inclusion



inclusion body

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Statistics for inclusion

Last Updated

22 May 2022

Cite this Entry

“Inclusion.” Dictionary, Merriam-Webster, Accessed 25 May. 2022.

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More Definitions for inclusion


in·​clu·​sion | \ in-ˈklü-zhən How to pronounce inclusion (audio) \

Kids Definition of inclusion

1 : an act of taking in as part of a whole : the state of being taken in as part of a whole She suggested inclusion of an entry.
2 : something taken in as part of a whole


in·​clu·​sion | \ in-ˈklü-zhən How to pronounce inclusion (audio) \

Medical Definition of inclusion

: something that is included especially : a passive usually temporary product of cell activity (as a starch grain) within the cytoplasm or nucleus


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