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The Collaborative International Dictionary
Tug iron

Tug \Tug\, n.

  1. A pull with the utmost effort, as in the athletic contest called tug of war; a supreme effort.

    At the tug he falls, Vast ruins come along, rent from the smoking walls.
    --Dryden.

  2. A sort of vehicle, used for conveying timber and heavy articles. [Prov. Eng.]
    --Halliwell.

  3. (Naut.) A small, powerful steamboat used to tow vessels; -- called also steam tug, tugboat, and towboat.

  4. A trace, or drawing strap, of a harness.

  5. (Mining.) An iron hook of a hoisting tub, to which a tackle is affixed.

    Tug iron, an iron hook or button to which a tug or trace may be attached, as on the shaft of a wagon.