phaseout

1 of 2

noun

phase·​out ˈfāz-ˌau̇t How to pronounce phaseout (audio)
Synonyms of phaseoutnext
: 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
In 2021, Brookline became the first to protect its next generation with the birthdate phaseout. Katharine Silbaugh, STAT, 19 May 2026 This is where India’s electrotech fast-track connects directly to the fossil fuel phaseout talks that began in Santa Marta, Colombia. Ingmar Rentzhog, Forbes.com, 15 May 2026
Verb
As nearly all Disney resorts have phased out room service, being able to order dinner directly to your room after a 12-hour park day might just be the pinnacle of luxury at Disney World. Jacqueline Dole, Southern Living, 22 May 2026 None of this replaces the need to phase out fossil fuels. Ingmar Rentzhog, Forbes.com, 22 May 2026 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 24 May. 2026.

Kids Definition

phase out

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

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