Bi Definition

bis
noun
A bisexual person.
American Heritage

(colloquial) A bisexual.

I'm hetero, but my oldest sister is bi.
Wiktionary

A type of jade disk produced in ancient China.

Wiktionary
Synonyms:
adjective
Bisexual.
American Heritage
Webster's New World

(colloquial) Bisexual.

Wiktionary
prefix
Two.
Biform.
American Heritage
Both.
Binaural.
American Heritage
Both sides, parts, or directions.
Biconcave.
American Heritage
Occurring at intervals of two.
Bicentennial.
American Heritage
Occurring twice during.
Biweekly.
American Heritage
symbol
Bismuth.
Webster's New World
affix
Having two.
Biangular, bicapsular.
Webster's New World
Doubly, on both sides, in two ways or directions.
Biconvex, bilingual.
Webster's New World
Coming, happening, or issued every two (specified periods)
Biennial, biweekly.
Webster's New World
Coming, happening, or issued twice during every (specified period)
Bimonthly, biyearly.
Webster's New World
Using two or both.
Bilabial, bimanual.
Webster's New World
abbreviation

The ccTLD for Burundi as assigned by the IANA.

Wiktionary

Other Word Forms of Bi

Noun

Singular:
bi
Plural:
bis

Origin of Bi

  • Latin bis, bi- twice, bīnī two by two dwo- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • L bi- < OL dui- < IE *dwi- < base *dwo-, two

    From Webster's New World College Dictionary, 5th Edition

  • Mandarin (bì)

    From Wiktionary

  • From bisexual

    From Wiktionary