Phase

noun
  1. A distinct period or stage in a process of change or development. noun
    The project is in its final phase and will be completed soon.
    During the early phases of the experiment, unexpected results were observed.
  2. A stage in a periodic process or phenomenon, such as a phase of the moon or a phase in an electrical cycle. noun
    The moon is currently in its waxing gibbous phase.
    The engineer explained the different phases of the electrical signal.
  3. To carry out something in gradual stages. verb
    The company plans to phase in the new policy over the next six months.
    They decided to phase out the old equipment gradually.
  4. To adjust the phase of something, especially in physics or engineering contexts. verb
    The technician phased the two signals to ensure they were synchronized.
    The radio operator had to phase the antenna to improve reception.