de·​ploy | \ di-ˈplȯi How to pronounce deploy (audio) \
deployed; deploying; deploys

Definition of deploy

transitive verb

1a : to extend (a military unit) especially in width
b : to place in battle formation or appropriate positions deploying troops to the region
2 : to spread out, utilize, or arrange for a deliberate purpose deploy a sales force deploy a parachute

intransitive verb

: to move, spread out, or function while being deployed the troops deployed along the front the parachute failed to deploy

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Other Words from deploy

deployable \ di-​ˈplȯi-​ə-​bəl How to pronounce deployable (audio) \ adjective

Examples of deploy in a Sentence

The troops were deployed for battle. They plan to deploy more American soldiers over the next six months. Two scientists were deployed to study the problem. Both campaigns are deploying volunteers to the cities to encourage people to vote. Equipment and supplies have been deployed across the country. He deploys several arguments to prove his point. Wait several seconds before deploying the parachute. The boat's sails were not fully deployed. The parachute failed to deploy properly.
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Recent Examples on the Web An agent or manager could also be deployed to secure lucrative speaking engagements, book deals, or perhaps an Obama-style production deal at Netflix. Abby Gardner, Glamour, "Meghan Markle Is Reportedly ‘Actively Looking’ for an Agent or Manager," 30 Jan. 2020 Somehow taking place simultaneously both in 1992 and the present day, the confrontationally unclassifiable Spanish-Swiss co-production blurs lines between documentary and fiction categories, and also deploys some arresting stylistic devices. Neil Young, The Hollywood Reporter, "'The Year of the Discovery' ('El ano del descubrimiento'): Film Review | Rotterdam 2020," 26 Jan. 2020 The Boilermakers mostly deployed sophomore guard Eric Hunter on Winston to prevent the All-American and reigning Big Ten player of the year from getting out in transition. Chris Solari, Detroit Free Press, "Tom Izzo on blueprint to beat Michigan State basketball: 'We'll be ready for it'," 12 Jan. 2020 Both the passenger's and driver's side airbags deployed, but the suspect was not injured, according to LMPD. Mandy Mclaren, The Courier-Journal, "Louisville police chase ends in crash days after controversial policy extended," 3 Jan. 2020 His parachute deployed, Smith began a 15,000-foot fall. Robert Faturechi, ProPublica, "Faulty Equipment, Lapsed Training, Repeated Warnings: How a Preventable Disaster Killed Six Marines," 2 Jan. 2020 The military deployed helicopters and vessels to help. The Christian Science Monitor, "The ever-fresh promise of God’s goodness," 31 Dec. 2019 The United States recently deployed 3,000 air defense and other troops to help protect the kingdom after a drone and missile attack on oil fields, which Washington blamed on Iran. Arkansas Online, "Defense chief studying troop cuts in West Africa," 25 Dec. 2019 The cons: Scaling it up The technology is still in its infancy and would need to be deployed on a global scale, which would be neither cheap nor easy. USA Today, "10 years to save planet Earth: Here are 6 imaginative climate change solutions," 24 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'deploy.' 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 deploy

1616, in the meaning defined at transitive sense 1a

History and Etymology for deploy

French déployer, literally, to unfold, from Old French desploier, from des- dis- + ploier, plier to fold — more at ply

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Time Traveler for deploy

Time Traveler

The first known use of deploy was in 1616

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Statistics for deploy

Last Updated

14 Feb 2020

Cite this Entry

“Deploy.” Dictionary, Merriam-Webster, Accessed 19 Feb. 2020.

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More Definitions for deploy


How to pronounce deploy (audio)

English Language Learners Definition of deploy

: to organize and send out (people or things) to be used for a particular purpose
: to open up and spread out the parts of (something, such as a parachute)

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More from Merriam-Webster on deploy

Thesaurus: All synonyms and antonyms for deploy

Rhyming Dictionary: Words that rhyme with deploy

Spanish Central: Translation of deploy

Nglish: Translation of deploy for Spanish Speakers

Britannica English: Translation of deploy for Arabic Speakers

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