Word.ws English Dictionary

c4

c4 noun: a 501(c)(4), an organization that conforms to the United States Internal Revenue Code section 501(c)4.

Noun

c4 (plural c4s)

  1. (US) A 501(c)(4), an organization that conforms to the United States Internal Revenue Code section 501(c)4
    Synonyms:
    501(c)

Proper noun capitalized: C4

C4

  1. (UK, abbreviation) Abbreviation of Channel 4 (“the British television channel”).

Synonyms of c4

  • 501(c)

Forms of c4

pluralc4s

Questions about c4

What does c4 mean?
C4 means a 501(c)(4), an organization that conforms to the United States Internal Revenue Code section 501(c)4.
What part of speech is c4?
C4 can be a noun or a proper noun.
What is the plural of c4?
The plural of c4 is c4s.

Words near c4 in the dictionary

  1. C3G
  2. C3I
  3. C3ISTAR
  4. C3PO
  5. c3s
  6. c4
  7. C4ISR
  8. c4s
  9. C5
  10. C64
  11. C64s

Source and license

Adapted from Wiktionary: c4 (page history and authors); C4 (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: “c4.” Word.ws, https://word.ws/c4. Based on Wiktionary, CC BY-SA 4.0.