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
The measure revives a 2022 phaseout that was thrown out by a judge. Los Angeles Times, 23 June 2026 Brandes said DeSantis’ proposal would place enormous responsibility on the Legislature to manage the phaseout of property taxes. Garrett Shanley Herald, Miami Herald, 27 May 2026
Verb
Europe is the planet’s fastest-warming continent and these kinds of extreme heat waves are only expected to become more severe, frequent and prolonged unless humans rapidly phase out fossil fuels, the scientists said. Laura Paddison, CNN Money, 26 June 2026 The city has already cut its homeless outreach and phased out a medical ambulance at one of its fire stations due to its budget shortfall. Steve Large, CBS News, 26 June 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

See all Nearby Words

Cite this Entry

“Phaseout.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phaseout. Accessed 27 Jun. 2026.

Kids Definition

phase out

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

More from Merriam-Webster on phaseout

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster