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vocabulary

American  
[voh-kab-yuh-ler-ee] / voʊˈkæb yəˌlɛr i /

noun

vocabularies plural
  1. the stock of words used by or known to a particular people or group of persons.

    His French vocabulary is rather limited. The scientific vocabulary is constantly growing.

  2. a list or collection of the words or phrases of a language, technical field, etc., usually arranged in alphabetical order and defined.

    Study the vocabulary in the fourth chapter.

  3. the words of a language.

  4. any collection of signs or symbols constituting a means or system of nonverbal communication.

    vocabulary of a computer.

  5. any more or less specific group of forms characteristic of an artist, a style of art, architecture, or the like.


vocabulary British  
/ vəˈkæbjʊlərɪ /

noun

  1. a listing, either selective or exhaustive, containing the words and phrases of a language, with meanings or translations into another language; glossary

  2. the aggregate of words in the use or comprehension of a specified person, class, profession, etc

  3. all the words contained in a language

  4. a range or system of symbols, qualities, or techniques constituting a means of communication or expression, as any of the arts or crafts

    a wide vocabulary of textures and colours

"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

Other Word Forms

Derived Forms

Inflected Forms

noun

Etymology

Origin of vocabulary

1525–35; < Medieval Latin vocābulārium, noun use of neuter of vocābulārius of words, equivalent to Latin vocābul ( um ) vocable + -ārius -ary

Explanation

Vocabulary is all about words — the words in a language or a special set of words you are trying to learn. Vocabulary is so important, we even created a web site to help expand yours. First used in the 1500s to mean a list of words with explanations, the noun vocabulary came to refer to the “range of language of a person or group” about two hundred years later. A lot of hobbies, like fishing or knitting, require that you learn their unique vocabulary before you can get the most out of them. If you're in a rush, vocab is a faster way to say vocabulary.

Keep Reading on Vocabulary.com

Vocabulary lists containing vocabulary

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.

I started the testing process with the Vocabulary subtest as I expected it to be easy for the chatbot, which is trained on vast amounts of online texts.

From Scientific American • Mar. 28, 2023

One school report reads: “A persistent muddler. Vocabulary negligible, sentences malconstructed.”

From Washington Post • Dec. 28, 2022

Vocabulary has long been part of the bee, but only on written tests.

From Seattle Times • Jun. 1, 2022

Vocabulary was taught gradually by repeated exposure to words in context instead of being doled out in a list for memorization.

From Slate • Aug. 17, 2020

Vocabulary isn’t really one of my specialties, but I give it a shot anyway.

From "Dragons in a Bag" by Zetta Elliott

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