Word.ws English Dictionary

c3

c3 is the ellipsis of 501(c)(3).

Meaning of 501(c)(3)

Noun

501(c)(3) (plural 501(c)(3)s)

  1. (US, organizations) An organization that complies with section 501(c)(3) of the U.S. federal tax code. A non-profit organization exempt from some federal income taxes, due to being dedicated to charitable, religious, educational, scientific, public safety, promotion of amateur sport at the national or international level, prevention of cruelty to women or children or animals, or literary purposes.
    • After the law was enacted in 2007, AIPAC, which had sponsored congressional trips to Israel since the 1990s, campaigned to create an exception for 501(c)(3) organizations that lobbying groups could use to get around the law. Both 501(c)(3) and 501(c)(4) groups are tax-exempt nonprofits, but...2023 November 18, Murtaza Hussein, “Meet the Secret Donors Who Fund AIPAC’s Israel Trips for Congress”, in The Intercept

Noun capitalized: C3

C3 (uncountable)

  1. (abbreviation, initialism) Initialism of command, control, and communications.

Forms of c3

pluralc3s

Questions about c3

What is c3 the ellipsis of?
C3 is the ellipsis of 501(c)(3).
What part of speech is c3?
C3 is a noun.
What is the plural of c3?
The plural of c3 is c3s.

Words near c3 in the dictionary

  1. C18
  2. C19
  3. C2
  4. C2A
  5. C2C
  6. c3
  7. C3CM
  8. C3G
  9. C3I
  10. C3ISTAR
  11. C3PO

Source and license

Adapted from Wiktionary: c3 (page history and authors); C3 (page history and authors); 501(c)(3) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “c3.” Word.ws, https://word.ws/c3. Based on Wiktionary, CC BY-SA 4.0.