Difference between Changeover and Transition

Changeover

Part of speech: noun

Definition: A conversion or transition from one thing to another

Transition

Part of speech: verb

Definition: To make a transition.

Part of speech: noun

Definition: the process of change from one form, state, style or place to anothera word or phrase connecting one part of a discourse to anothera brief modulation; a passage connecting two themesa point mutation in which one base is replaced by another of the same class (purine or pyrimidine); compare transversion(some sports) a change from defense to attack, or attack to defensethe onset of the final stage of childbirth

Example sentence: I think that the world is in the middle of a huge transition that we have to make to renewable energy. We have to transition away from fossil fuels very, very quickly.