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phase-in

[ feyz-in ]

noun

  1. an act or instance of phasing in; gradual introduction or implementation.


phase in

verb

  1. tr, adverb to introduce in a gradual or cautious manner

    the legislation will be phased in over two years



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Word History and Origins

Origin of phase-in1

Noun use of verb phrase phase in
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Idioms and Phrases

Introduce one stage at a time. For example, New technology must be phased in or the office will be overwhelmed . The antonym is phase out , meaning “to bring or come to an end, one stage at a time,” as in The department is phasing out all the older computers . [Mid-1900s]
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Example Sentences

Following royal assent, and a one-year phase-in period, Section 13 will be history.

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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