phases

n. the different parts or stages of a project, process, or development.

n. distinct stages or periods in a series of events or a process of change.

“The construction project will be completed in three separate phases over two years.”

“The clinical trial is currently entering its final phases, with researchers monitoring long-term efficacy across a broader demographic.”

n. the different shapes the moon or a planet appears to have as it moves.

n. the varying appearances of the illuminated portion of a planet or satellite as seen from Earth.

“We studied the phases of the moon in our science class last week.”

“Ancient calendars were often based on the lunar phases, tracking the transition from new moon to full moon with high precision.”

v. to start or finish something in stages rather than all at once.

v. to carry out a plan or introduce a change in gradual steps; often used with 'in' or 'out'.

“The company phases in the new software slowly to avoid technical problems.”

“The government phases out the old currency over six months to ensure the economy remains stable during the transition.”