• (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); "the full Phase of the moon"
• (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; "the reaction occurs in the liquid Phase of the system"
• a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle
• any distinct time period in a sequence of events; "we are in a transitional stage in which many former ideas must be revised or rejected"
• adjust so as to be in a synchronized condition; "he Phased the intake with the output of the machine"
• arrange in Phases or stages; "Phase a withdrawal"

'Phase' in other languages