expand

verb
ex·​pand | \ ik-ˈspand \
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 \ noun
expandable \ ik-​ˈspan-​də-​bəl \ 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

Huawei, headquartered in the southern city of Shenzhen, has steadily expanded into new industry segments. Joe Mcdonald, The Seattle Times, "China’s Huawei unveils chip for global big data market," 7 Jan. 2019 About: This national non-profit, recently expanded to 13 cities across the U.S., tackles homelessness through running, community support, and employment and housing resources. Jenny Mccoy, SELF, "10 Ways to Use Your Love of Fitness to Do Good on Giving Tuesday or Any Day," 27 Nov. 2018 Sunday Scaries just majorly expanded its offerings, including adding a vegan gummy option that tastes like a mix between a gummy bear and a Sour Patch Kid. Allure, "12 CBD Tinctures, Gummies, and Drinks That Help Calm Anxiety," 23 Oct. 2018 With advances in technology and further refinement of the concept, missions to the Venusian atmosphere can expand humanity’s future in space. Fox News, "NASA eyes stunning 'cloud city' airship concept to explore Venus," 16 Oct. 2018 Over 67 million women, men, and children are enrolled in Medicaid, in part because the Affordable Care Act allows states to expand the vital health insurance program. Kaitlin Menza, Redbook, "Everything You Need to Know Before Voting in the Midterm Elections," 10 Oct. 2018 Where the service was previously limited to a handful of handsets designed for Fi—namely Pixels, the Moto G6, and a couple LG ThinQ phones—the new service expands availability to phones made by Samsung, Huawei, Nokia, Essential, Apple, and others. Michael Simon, PCWorld, "Google Fi wireless service now works with iPhones and most Android phones, but there’s a catch," 28 Nov. 2018 However, some of the toughest sentencing was expanded to include all offenders convicted of a serious drug or violent felony, not just to offenders with prior drug felonies, as it is currently applied. Natalie Andrews, WSJ, "McConnell Controls Fate of Criminal-Justice Overhaul Bill," 20 Nov. 2018 The handlebars were attached via hardware that extended into the frame and could be expanded there by tightening a bolt that locked it in place. John Timmer, Ars Technica, "How bicycles have changed in the last 25 years," 10 Nov. 2018

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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Statistics for expand

Last Updated

13 Jan 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 \
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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tremendous in size, volume, or degree

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