phase in
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
Recent Examples on the Web
Kenya, for instance, plans to bring a small modular reactor online in 2034 after starting the first phase in 2009.
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ABC News, 17 Apr. 2026
The summit acted as a way to update academics, the media and the public on how design and construction of the telescope is proceeding following the National Science Foundation (NSF) officially advancing the project to its final design phase in the summer of 2025.
—Keith Cooper, Space.com, 17 Apr. 2026
The district planned to phase in the changes over time, with final approval expected at a May or June school board meeting and implementation targeted for the 2027-28 school year.
—Nicole Buss, Sacbee.com, 16 Apr. 2026
The exercise, conducted from April 7 to 9, marked a key phase in the division’s Pegasus Charge initiative and its Golden Shield concept.
—Neetika Walter, Interesting Engineering, 14 Apr. 2026
See All Example Sentences for phase in
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ABC News, 17 Apr. 2026
The summit acted as a way to update academics, the media and the public on how design and construction of the telescope is proceeding following the National Science Foundation (NSF) officially advancing the project to its final design phase in the summer of 2025.
—Keith Cooper, Space.com, 17 Apr. 2026
The district planned to phase in the changes over time, with final approval expected at a May or June school board meeting and implementation targeted for the 2027-28 school year.
—Nicole Buss, Sacbee.com, 16 Apr. 2026
The exercise, conducted from April 7 to 9, marked a key phase in the division’s Pegasus Charge initiative and its Golden Shield concept.
—Neetika Walter, Interesting Engineering, 14 Apr. 2026
See All Example Sentences for phase in
Cite this Entry
“Phase in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phase%20in. Accessed 23 Apr. 2026.
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