phase

(noun) any distinct time period in a sequence of events. Synonyms: stage. Example: "We are in a transitional stage in which many former ideas must be revised or rejected."

(noun) (physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary. Synonyms: form. Example: "The reaction occurs in the liquid phase of the system."

(noun) a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle. Synonyms: phase angle.

(noun) (astronomy) the particular appearance of a body's state of illumination (especially one of the recurring shapes of the part of Earth's moon that is illuminated by the sun). Example: "The full phase of the moon."

(verb) arrange in phases or stages. Example: "Phase a withdrawal."

(verb) adjust so as to be in a synchronized condition. Example: "He phased the intake with the output of the machine."