Dolly

Part of speech: noun (n.)

1. A contrivance, turning on a vertical axis by a handle or winch, and giving a circular motion to the ore to be washed; a stirrer.

2. A tool with an indented head for shaping the head of a rivet. Knight.

3. In pile driving, a block interposed between the head of the pile and the ram of the driver.

4. A small truck with a single wide roller used for moving heavy beams, columns, etc., in bridge building.

5. A compact, narrow-gauge locomotive used for moving construction trains, switching, etc.

Part of speech: noun (n.)

A child's mane for a doll. Dolly shop, a shop where rags, old junk, etc., are bought and sold; usually, in fact, an unlicensed pawnbroker's shop, formerly distinguished by the sign of a black doll. [England]