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English Lexicon

Phase-out

/ˈfeɪz.aʊt/
nounverbCEFR B2 (Upper)Top #4500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The gradual discontinuation or withdrawal of something over a period of time.

    "The government announced a complete phase-out of fossil-fuel vehicles by 2040."
As verb
  1. 1

    To discontinue or withdraw something in gradual stages.

    "The company decided to phase out the outdated software over the next six months."
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Thesaurus & Semantic Spectrum

Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the noun phase, originating from Middle French and Greek phasis (appearance), combined with the adverb out. The phrasal verb and resulting noun emerged in the mid-20th century, notably during industrial and economic planning to describe the gradual discontinuation of a product, program, or practice.

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