Synonyms for

Bi

Verb / baɪ / Another word for bi — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

Bi is a prefix that means 'two' or 'twice'.

Synonyms & similar words

bismuth bi atomicnumber bis twice double dual dyadic binomial duplex bifold bilateral binary bipartite dualistic duplicate twin second both couple pair twosome

Synonyms by register

Formal

dual double twofold

Informal

two pair couple

Literary

twin duo

Antonyms

single mono uni one individual

Common collocations

  • bi-monthly meeting
  • bi-annual report
  • bi-polar disorder
  • bi-lateral agreement
  • bi-racial family
  • bi-lingual education
  • bi-weekly newsletter

Word family

noun bifurcation
adjective binary
adverb binomially

Usage note

The prefix 'bi-' typically means 'two' or 'twice'. It is important to distinguish between 'bi-monthly' (twice a month) and 'bi-monthly' (every two months), and similarly for 'bi-weekly' and 'bi-weekly'.

Example sentences

  1. There are two sides to every story.
  2. She has a bicycle with two wheels.
  3. I have to brush my teeth twice a day.
  4. The twins were born within two minutes of each other.
  5. The store is having a buy-one-get-one-free sale.

Quotes

  • 'Bi' means two. So this is the word bicycle. A bicycle has two wheels.' - Bill Nye
  • 'Bi' means two or twice. So when you see this prefix, you know there are two of something.' - Unknown
  • 'Bi' means two, so this is a bicycle built for two.' - Unknown

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