- an expert in discovering and eliminating the cause of problems or malfunctions in software, mechanical equipment, power lines, etc.: An experienced troubleshooter can make power outages much shorter.
- a person with special skill in resolving disputes, impasses, etc., as in business, national, or international affairs: She's worked as a diplomatic troubleshooter in the Middle East.
- a person who locates the cause of trouble and removes or treats it
