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.

A phase is one of the forms in which matter can exist, such as solid, liquid, or a gas.

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.

Jan 20, 2026 · (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 …

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

Phase definition: A distinct stage of development.

Factsheet What does the noun phase mean? There are seven meanings listed in OED's entry for the noun phase. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Phase generally refers to a distinct stage or period in a process of change or development. It can be used in various fields such as physics, where it signifies the position of a point in time or space on a …

Phase and faze are homophones (words pronounced alike but different in meaning, derivation, or spelling) that may easily be confused. Despite the similarity in pronunciation, these words bear little …

PHASE meaning: 1 : a part or step in a process one part in a series of related events or actions; 2 : a short period of time during which a person behaves in a particular way or likes a particular thing