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
That means parents can still claim $2,000 per qualifying child under age 17, enjoy partial refundability of up to $1,700 per qualifying child, with an income phaseout starting at $200,000 for single filers and $400,000 for joint filers. Andrew Leahey, Forbes, 19 Mar. 2025 Dependents could earn $1,400 in 2021, regardless of their age, but the same phaseout limits applied. Dan Avery, CNBC, 18 Mar. 2025
Verb
Other countries like Norway and Britain have even laid out plans to phase out internal combustion engine vehicles altogether. Mack Degeurin, Popular Science, 13 Mar. 2025 Carney also pledges to phase out the use of fossil fuels in federal government buildings by 2030 and expand the country’s electric vehicle charging station infrastructure. Simmone Shah, TIME, 10 Mar. 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

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Cite this Entry

“Phaseout.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phaseout. Accessed 17 Apr. 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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