Tug

1. n. An iron hook of a hoisting tub, to which a tackle is affixed.
2. v. t. To pull or draw with great effort; to draw along with continued exertion; to haul along; to tow; as, to tug a loaded cart; to tug a ship into port.
3. v. t. To pull; to pluck.
4. v. i. To pull with great effort; to strain in labor; as, to tug at the oar; to tug against the stream.
5. v. i. To labor; to strive; to struggle.
6. n. A pull with the utmost effort, as in the athletic contest called tug of war; a supreme effort.
7. n. A sort of vehicle, used for conveying timber and heavy articles.
8. n. A small, powerful steamboat used to tow vessels; — called also steam tug, tugboat, and towboat.
9. n. A trace, or drawing strap, of a harness.
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The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.