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.
Cite this Entry
“Phase in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phase%20in. Accessed 14 Mar. 2026.
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