phase in

phrasal verb

phased in; phasing in; phases in
: to start to use or do (something) gradually over a period of time : to introduce (something) slowly
The country is phasing in new paper currency.
The law will phase tax cuts in over a period of two years.

Examples of phase in in a Sentence

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Waymo’s expansion playbook involves comprehensively mapping new cities, and phasing in autonomous ride-hailing after testing the technology with drivers in the front seat and employees as passengers. Chris Kirkham, Nashville Tennessean, 10 Oct. 2025 The seven-time world champion lost his 12-year-old Roscoe a week ago, marking an extremely emotional and difficult phase in his life. Saajan Jogia, MSNBC Newsweek, 8 Oct. 2025 The company plans to expand the program internationally in phases in the future. David Moin, Footwear News, 8 Oct. 2025 The physical profile of the former Trawsfynydd nuclear power station is scheduled to be substantially altered, a project involving considerable engineering challenges that marks a new phase in the site’s decommissioning. Aman Tripathi, Interesting Engineering, 8 Oct. 2025 See All Example Sentences for phase in

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Cite this Entry

“Phase in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phase%20in. Accessed 18 Oct. 2025.

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