Word.ws English Dictionary

bir-

bir- prefix: a variant of bi- (“two”), used before a root beginning with a vowel (for example, aryl as in biraryl) to aid pronunciation.

Prefix

bir-

  1. A variant of bi- (“two”), used before a root beginning with a vowel (for example, aryl as in biraryl) to aid pronunciation.

Origin of bir-

Variant of bi- (“two”).

Words formed from bir-

Questions about bir-

What does bir- mean?
Bir- means a variant of bi- (“two”), used before a root beginning with a vowel (for example, aryl as in biraryl) to aid pronunciation.
What part of speech is bir-?
Bir- is a prefix.

Words near bir- in the dictionary

  1. biquotient
  2. biquotients
  3. BIR
  4. Bir Tawil
  5. Bir Tawil Triangle
  6. bir-
  7. biracial
  8. biracialism
  9. biraciality
  10. biracially
  11. biracials

Source and license

Adapted from Wiktionary: bir- (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: “bir-.” Word.ws, https://word.ws/bir-. Based on Wiktionary, CC BY-SA 4.0.