phaseout

1 of 2

noun

phase·​out ˈfāz-ˌau̇t How to pronounce phaseout (audio)
: a gradual stopping (as in operations or production) : a closing down by phases

phase out

2 of 2

verb

phased out; phasing out; phases out

transitive verb

: to discontinue the practice, production, or use of by phases

intransitive verb

: to stop production or operation by phases

Examples of phaseout in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Roth IRAs Taxpayers who wish to contribute to a Roth IRA are subject to phaseout amounts. Kelly Phillips Erb, Forbes.com, 11 Sep. 2025 European Commission chief Ursula von der Leyen said Wednesday the EU is considering a faster phaseout of Russian fossil fuels. Laura Kelly, The Hill, 11 Sep. 2025
Verb
Grumet said the clean energy industry was prepared to deal with Congress's phase out of tax subsidies. Jeff Young, MSNBC Newsweek, 17 Sep. 2025 These agreements phased out the majority of ozone-depleting substances. Dianne Plummer, Forbes.com, 16 Sep. 2025 See All Example Sentences for phaseout

Word History

First Known Use

Noun

1951, in the meaning defined above

Verb

1940, in the meaning defined at transitive sense

Time Traveler
The first known use of phaseout was in 1940

Browse Nearby Words

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Cite this Entry

“Phaseout.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phaseout. Accessed 18 Sep. 2025.

Kids Definition

phase out

verb
: to discontinue doing, producing, or using
phasing out old machinery

More from Merriam-Webster on phaseout

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