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

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The skies over England were bright with auroras on October 18, 1848, as the Sun was entering a more active phase in its solar cycle. — Mike McRae 15, New Atlas, 16 Oct. 2026 But, being the second spin-off from a show in the fourth phase in Marvel’s increasingly complex universe of characters (many of whom were vanquished at the end of phase three), there’s a hefty backstory to contend with. — Alex Ritman, Variety, 16 Oct. 2026 On Wednesday, the City Council approved a measure to make the program permanent and expand it citywide in three phases in 2027 and 2028. — Todd Feurer, CBS News, 14 Oct. 2026 California, Alabama and Oklahoma have had to phase in their new cards gradually, allowing customers to still use the card’s magnetic stripe if the chip isn’t working everywhere yet. — Eli Hager, ProPublica, 13 Oct. 2026 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 20 Oct. 2026.

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