n. pl. com·mu·ni·ties
a. A group of people living in the same locality and under the same government.
b. The district or locality in which such a group lives.
a. A group of people having common interests: the scientific community; the international business community.
b. A group viewed as forming a distinct segment of society: the gay community; the community of color.
a. Similarity or identity: a community of interests.
b. Sharing, participation, and fellowship: a sense of community.
4. Society as a whole; the public.
a. A group of organisms interacting with one another and with the environment in a specific region.
b. The region occupied by a group of interacting organisms.
[Middle English communite, citizenry, from Old French, from Latin commūnitās, fellowship, from commūnis, common; see COMMON.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.