| Tiller |
A stick or tube used to control the rudder for steering. |
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| Transom |
The back, outer part of the stern. |
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| Trim |
To adjust sails. |
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| Turnbuckle |
A fitting used to adjust the length and tension of a shroud or forestay. |
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| Upwind |
Toward the wind or the opposite direction the wind is blowing. |
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| VHF |
Very high frequency radio. |
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| Wake |
The swell left in the water by a boat. |
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| Winch |
A mechanical device used to assist in trimming the sails. |
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| Windlass |
A winch for hauling in the anchor chain. |
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| Window |
A transparent portion of a mainsail or jib. |
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| Windward |
Toward or closer to the wind. |
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| Wing the jib |
Trimming the jib on the opposite side as the mainsail when running. |