A phase is a particular period of time, like someone whose teenage rebellion phase lasts well into her thirties. The word phase can mean a stage in a person’s development or a step in a. The phases of the moon are the regular changes in its shape as it appears to people on earth. A phase is one of the forms in which matter can exist, such as solid, liquid, or a gas. Phase synonyms, phase pronunciation, phase translation, english dictionary definition of phase. The toddler is just going through a phase. A distinct stage of development. Definition of phase noun in oxford advanced learner's dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. A phase is a particular stage in a process or in the gradual development of something.

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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