What douse the wordphase mean

verb

1.

carry out (something) in gradual stages.

2.

PHYSICS

adjust the phase of (something), especially so as to synchronize it with something else.

noun

1.

a distinct period or stage in a series of events or a process of change or development.

2.

each of the aspects of the moon or a planet, according to the amount of its illumination, especially the new moon, the first quarter, the full moon, and the last quarter.