There are various synonyms for the phrase "switch over." These include "change," "shift," "transition," "convert," "alter," "adjust," "transfer," and "move." Each of these synonyms implies a particular form of modification or movement from one state to another. For instance, "switch over" typically refers to changing from one option to another, while "convert" refers to changing something from one form to another and "transition" emphasizes a more gradual or prolonged process of change. Similarly, "move" and "transfer" imply a physical transition or relocation, while "alter" and "adjust" suggest a more incremental or targeted change. Ultimately, the specific synonym used will depend on the particular context and intended meaning of the phrase.