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bilingual

American  
[bahy-ling-gwuhl, -ling-gyoo-uhl] / baɪˈlɪŋ gwəl, -ˈlɪŋ gyu əl /

adjective

  1. able to speak two languages with the facility of a native speaker.

  2. spoken, written, or containing similar information in two different languages.

    a bilingual dictionary; Public notices at the embassy are bilingual.

  3. of, involving, or using two languages.

    a bilingual community; bilingual schools.


noun

  1. a bilingual person.

bilingual British  
/ baɪˈlɪŋɡwəl /

adjective

  1. able to speak two languages, esp with fluency

  2. written or expressed in two languages

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a bilingual person

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does bilingual mean? Bilingual is most commonly used to describe someone who can speak or understand two languages, especially with some level of fluency. It can also be used to describe things that involve or that are written or spoken in two languages, as in These instructions are bilingual—they’re written in English and Spanish. The similar terms trilingual and multilingual are used in the same way, with trilingual indicating three languages and multilingual indicating more than two and especially several languages. The ability to speak two languages or the use of two languages is called bilingualism. Example: Being bilingual is a great advantage for many job seekers.

Other Word Forms

  • bilingualism noun
  • bilingually adverb

Etymology

Origin of bilingual

1835–45; < Latin bilingu ( is ) ( bi- bi- 1 + lingu-, stem of lingua tongue + -is adj. suffix) + -al 1

Explanation

Bilingual is an adjective that describes a person or community that speaks two languages. A bilingual woman might speak Spanish and English, and a part of town where people speak Mandarin and Polish is a bilingual neighborhood. The prefix bi- means “having two,” and the Latin word lingua means “tongue, language,” so bilingual literally means “having two tongues.” It would be a mouthful to have two physical tongues, but luckily bilingual is for language tongues: the ability to speak two languages fluently. Bilingual is also a noun, and a person can be called a bilingual, like in the African country Chad, where the official languages are French and Arabic, and where many of the citizens are bilinguals.

Keep Reading on Vocabulary.com

Vocabulary lists containing bilingual

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The developer would also make $48 million in infrastructure upgrades and provide transparent, bilingual marketing and communication.

From Salon • Apr. 12, 2026

Media companies a decade ago raced to engage young, bilingual Latinos by launching start-ups, including a joint venture between ABC News and Univision called Fusion that flopped.

From Los Angeles Times • Apr. 11, 2026

I am thankful to have grown up in a bilingual country and to have attended a high school where we studied Molière in French and Shakespeare in English.

From The Wall Street Journal • Apr. 1, 2026

He added: "Wales, let me be very clear, is a bilingual nation. We speak English and Welsh, and whatever language you speak, you should feel welcome in our country."

From BBC • Mar. 19, 2026

She knew Jake would be useless helping her with her bilingual language skills.

From "The Smartest Kid in the Universe" by Chris Grabenstein