Synonyms for Mechanic (same or very similar meaning)
WordNet sense 1 (a craftsman skilled in operating machine tools):
machinist, shop mechanicWordNet sense 2 (someone whose occupation is repairing and maintaining automobiles):
auto-mechanic, car-mechanic, automobile mechanic, grease monkeyWordNet sense 3 (using (or as if using) mechanisms or tools or devices):
mechanicalFrom the ODE community, based on WordNetadd/edit