changeover

/ˈtʃeɪndʒˌoʊvər/
noun
  1. The act or process of changing from one system, method, or situation to another.
    • The factory completed its changeover from coal power to solar energy last month.
    • During the changeover between flights, passengers had to wait in the terminal for two hours.
    • The changeover to the new software took longer than expected.
What does "changeover" mean? | whatsthatwordmean | whatsthatwordmean