phaseout

1 of 2

noun

phase·​out ˈfāz-ˌau̇t 

: 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

Noun

Even with a temporary $40,000 SALT cap, high earners face phaseouts—making PTET the permanent workaround that keeps deductions alive while unlocking the full standard deduction and new charitable benefits. —Robert Green, Forbes.com, 30 Aug. 2025

Extra income can impact tax breaks — including the $40,000 SALT cap — due to phaseouts, or benefit reductions, once earnings exceed certain thresholds, experts say. —Kate Dore, Cfp®, Ea, CNBC, 27 Aug. 2025

Verb

The deduction for car loan interest, on the other hand, starts phasing out at a much lower income level. —Susan Tompor, Freep.com, 3 Sep. 2025

An Amazon spokesperson confirmed the company is phasing out the program in favor of Amazon Family, which lets Prime members share free shipping and other benefits with one other adult, four children and up to four teens added before April 7, 2025. —Annie Palmer, CNBC, 2 Sep. 2025

Word History

First Known Use

Noun

1951, in the meaning defined above

Verb

1940, in the meaning defined at transitive sense

Rhymes for phaseout

• roundabout
• runabout
• sauerkraut
• thereabout
• turnabout
• about
• bailout
• blackout
• blowout
• breakout
• burnout
• buyout

Kids Definition

phase out

verb

: to discontinue doing, producing, or using

phasing out old machinery