phase Definition in Cambridge British English Dictionary
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Definition of "phase" - British English Dictionary

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phasenoun [C]

uk   us   /feɪz/
B2 any stage in a series of events or in a process of development: The project is only in the initial phase as yet, but it's looking quite promising. We're entering a new phase in international relations.B2 a period of strange or difficult behaviour, especially that a young child or person goes through, that will stop after a while: When I was in my early teens I went through a phase of only ever wearing black. The phases of the moon are the regular changes in its shape as it appears to us on Earth.
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phaseverb [T often passive]

uk   us   /feɪz/
to introduce something in stages over a particular period of time: The reduction in armed forces will be phased over the next ten years.
(Definition of phase from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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