Nouns

(n)machinist, mechanic, shop mechanica craftsman skilled in operating machine tools
(n)automobile mechanic, auto-mechanic, car-mechanic, mechanic, grease monkeysomeone whose occupation is repairing and maintaining automobiles

Adjectives

(s)mechanicresembling the action of a machine“from blank to blank a threadless way I pushed mechanic feet” (Emily Dickenson)