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merriam-webster.com
https://www.merriam-webster.com/dictionary/phase
PHASE Definition & Meaning - Merriam-Webster
: the point or stage in a period of uniform circular motion, harmonic motion, or the periodic changes of any magnitude varying according to a simple harmonic law to which the rotation, oscillation, or variation has advanced from its standard position or assumed instant of starting.
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cambridge.org
https://dictionary.cambridge.org/dictionary/englis…
PHASE | English meaning - Cambridge Dictionary
A phase is one of the forms in which matter can exist, such as solid, liquid, or a gas.
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wikipedia.org
https://en.wikipedia.org/wiki/Phase
Phase - Wikipedia
State of matter, or phase, one of the distinct forms in which matter can exist Phase (matter), a region of space throughout which all physical properties are essentially uniform
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wiktionary.org
https://en.wiktionary.org/wiki/phase
phase - Wiktionary, the free dictionary
(astronomy) A particular appearance or state in a regularly recurring cycle of changes with respect to quantity of illumination or form, or the absence, of a body's illuminated disk. Illustrated in Wikipedia's article Lunar phase.
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wordreference.com
https://www.wordreference.com/definition/phase
phase - WordReference.com Dictionary of English
a stage in a process of change or development: Each phase of life brings its own joys. a side, aspect, or point of view: This is only one phase of the question.
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yourdictionary.com
https://www.yourdictionary.com/phase
Phase Definition & Meaning | YourDictionary
Phase definition: A distinct stage of development.
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thefreedictionary.com
https://www.thefreedictionary.com/phase
Phase - definition of phase by The Free Dictionary
1. any distinct or characteristic period or stage in a sequence of events or chain of development: there were two phases to the resolution; his immaturity was a passing phase.
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dictionary.com
https://www.dictionary.com/browse/phase
PHASE Definition & Meaning | Dictionary.com
PHASE definition: any of the major appearances or aspects in which a thing of varying modes or conditions manifests itself to the eye or mind. See examples of phase used in a sentence.
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moongiant.com
https://www.moongiant.com/phase/today/
Today's Moon Phase | Current moon cycle for today and tonight
Moon Phase for today: Dec 13, 2025 The Moon's current phase for today and tonight is a Waning Crescent phase. This phase is best viewed just before the sunrise in the western sky. In this phase the Moon’s illumination is growing smaller each day until the New Moon.
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cambridge.org
https://dictionary.cambridge.org/us/dictionary/lea…
PHASE | definition in the Cambridge Learner’s Dictionary
The first phase of the project is scheduled for completion next year. My younger daughter is going through a phase of only wearing black. (Definition of phase from the Cambridge Learner's Dictionary © Cambridge University Press)