expand

verb
ex·​pand | \ ik-ˈspand How to pronounce expand (audio) \
expanded; expanding; expands

Definition of expand

transitive verb

1 : to open up : unfold
2 : to increase the extent, number, volume, or scope of : enlarge
3a : to express at length or in greater detail
b : to write out in full expand all abbreviations
c : to subject to mathematical expansion expand a function in a power series

intransitive verb

1 : to open out : spread
2 : to increase in extent, number, volume, or scope
3 : to speak or write fully or in detail expanded on the theme
4 : to feel generous or optimistic

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Other Words from expand

expandability \ ik-​ˌspan-​də-​ˈbi-​lə-​tē How to pronounce expandability (audio) \ noun
expandable \ ik-​ˈspan-​də-​bəl How to pronounce expandable (audio) \ adjective

Choose the Right Synonym for expand

expand, amplify, swell, distend, inflate, dilate mean to increase in size or volume. expand may apply regardless of the manner of increase (such as growth, unfolding, addition of parts). a business that expands every year amplify implies the extension or enlargement of something inadequate. amplify the statement with details swell implies gradual expansion beyond a thing's original or normal limits. the bureaucracy swelled to unmanageable proportions distend implies outward extension caused by pressure from within. a distended abdomen inflate implies expanding by introduction of air or something insubstantial and suggests a vulnerability to sudden collapse. an inflated ego dilate applies especially to expansion of circumference. dilated pupils

Examples of expand in a Sentence

The liquid expands and contracts with changes in temperature. His business has expanded to serve the entire state. The coffee shop may expand into a full restaurant. He has expanded his business to serve the entire state. There are plans to expand the airport. The police have decided to expand their investigation. She plans to expand the lecture series into a book. Expand the abbreviation “deg.” to “degree.”
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Recent Examples on the Web

These ancient origins have inspired the founders of a new NÜSHÙ, an all-female music collective founded in 2018 among the ever-expanding skylines of modern-day Shanghai. Vogue, "This All-Female DJ Collective Wants to Empower the Women of Shanghai’s Nocturnal World," 15 May 2019 That's the exciting part of the ever-expanding market: finding new makeup treasures to further complete our artistic visions of becoming ourselves. Allure, "The Best New Makeup Launches Coming This Month," 1 May 2019 Kim Kardashian and Kanye West's fourth child is arriving soon, and the KKW Beauty founder has just celebrated her expanding family with a CBD-themed baby shower. Amy Mackelden, Harper's BAZAAR, "Kim Kardashian Just Threw a CBD-Themed Baby Shower Ahead of Arrival of Her Fourth Child," 28 Apr. 2019 Since launching in 2017, Buu has expanded her line of products to include serums, masks, and a face oil—available in U.S. Bloomingdale’s stores by late spring. Charlotte Palermino, Marie Claire, "15 Women to Watch in the CBD Industry," 16 Apr. 2019 The all-cash deal, which is expected to be announced Monday morning, would help Catalent expand its gene-therapy manufacturing capabilities, the people said. Cara Lombardo, WSJ, "Contract Drug Manufacturer Catalent to Buy Paragon Bioservices in $1.2 Billion Deal," 14 Apr. 2019 In 2016, a law that would have expanded the state’s medical marijuana program failed despite passing in the state’s Senate Medical Affairs subcommittee. Meredith Clark, Marie Claire, "Is CBD Even Legal Where You Live?," 12 Apr. 2019 Chip and Joanna Gaines currently boast a bustling brood of five kiddos and a rapidly expanding Magnolia empire (including...a castle), but how exactly did the Fixer Upper alums get their big break? Blair Donovan, Country Living, "Joanna Gaines Finally Met the Woman Who's Responsible for 'Fixer Upper'," 7 Apr. 2019 Rent the Runway, the popular clothing-rental company, is expanding its service to include kids' clothes. Marisa Lascala, Good Housekeeping, "Rent the Runway Just Launched a New Rental Service for Kids' Special-Occasion Clothes," 5 Apr. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'expand.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of expand

15th century, in the meaning defined at transitive sense 1

History and Etymology for expand

Middle English expaunden, from Latin expandere, from ex- + pandere to spread — more at fathom

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Learn More about expand

Statistics for expand

Last Updated

19 May 2019

Look-up Popularity

Time Traveler for expand

The first known use of expand was in the 15th century

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More Definitions for expand

expand

verb

English Language Learners Definition of expand

: to increase in size, range, or amount : to become bigger
: to cause (something) to increase in size, range, or amount : to make (something) bigger
: to write (something) in full form

expand

verb
ex·​pand | \ ik-ˈspand How to pronounce expand (audio) \
expanded; expanding

Kids Definition of expand

1 : to grow or increase in size, number, or amount The airport is expanding.
2 : to open wide : unfold The eagle's wings expanded.
3 : to take up or cause to take up more space Metals expand under heat.
4 : to speak or write about in greater detail Would you expand on that idea?

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More from Merriam-Webster on expand

Rhyming Dictionary: Words that rhyme with expand

Thesaurus: All synonyms and antonyms for expand

Spanish Central: Translation of expand

Nglish: Translation of expand for Spanish Speakers

Britannica English: Translation of expand for Arabic Speakers

Comments on expand

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