Definitions:

1. (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) noun
   • the full phase of the moon
2. (physical chemistry) a distinct state of matter in a system noun
   • matter that is identical in chemical composition and physical state and separated from other material by the phase boundary
3. adjust so as to be in a synchronized condition verb
   • We phased the intake with the output of the machine.
4. arrange in phases or stages verb
   • phase a withdrawal

Synonyms:

• form
• phase angle
• stage

NearBy Words:

• phase-out
• phaseolus