Word.ws English Dictionary

303

303 noun: the .303 British rifle calibre.

Noun

303 (plural 303s)

  1. (informal, singular, singular-only) The .303 British rifle calibre.
  2. (countable) A rifle chambered in this calibre, normally the SMLE series.
  3. (countable) The TB-303 synthesizer.

Proper noun

303

  1. (often, with-definite-article) North Central Colorado, including Denver and Boulder, after the 303 area code.

Forms of 303

plural303s

Questions about 303

What does 303 mean?
303 means the .303 British rifle calibre.
What part of speech is 303?
303 can be a noun or a proper noun.
What is the plural of 303?
The plural of 303 is 303s.

Words near 303 in the dictionary

  1. 30-gons
  2. 30-something
  3. 30-somethings
  4. 300 Club
  5. 301
  6. 303
  7. 303s
  8. 304
  9. 304s
  10. 304tok
  11. 305

Source and license

Adapted from Wiktionary: 303 (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.

Last updated:

Cite this entry: “303.” Word.ws, https://word.ws/303. Based on Wiktionary, CC BY-SA 4.0.