dolly

dolly is a   Noun

Definition:

[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.

Synonyms: