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English definition of “deploy”

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deploy

verb [I/T]  /dɪˈplɔɪ/ us  
to put something into use: [I] When airbags deploy, they save lives. [T] Automobiles deploy air bags in crashes of 8 to 12 miles per hour. To deploy is also to move weapons or military forces to where they will be used when they are needed: [T] The UN is deploying observers.
deployment
noun [U]  /dɪˈplɔɪ·mənt/ us  
the deployment of missiles/troops
(Definition of deploy from the Cambridge Academic Content Dictionary © Cambridge University Press)
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