Mode of operation refers to the specific way in which something is done or accomplished. Synonyms for this phrase include "method of operation", "approach", "process", and "system". Each of these phrases indicates a distinct way in which tasks can be completed or goals achieved. A "method of operation" suggests a more specific set of steps or procedures being followed, whereas "process" indicates a more abstract series of actions or stages. "Approach" is a more generalized word that can be applied to a broad range of tasks or objectives. Finally, "system" indicates a comprehensive set of procedures, tools, and techniques that have been organized into a coherent whole for the efficient completion of specific tasks.