Sheet:

Line to control the trim of a sail.

Shroud:

Standing rigging to support the mast sideways.

Spring:

A mooring rope. A back spring is led from forward aft or from aft forward.

Stand on:

Maintain course.

Starboard:

The right-hand side of a boat facing forward.

Starboard tack:

With the wind on the starboard side forward of the beam.

Take up:

To tighten.

Tiller:

Steering arm attached to the rudder.

Trim:

To change the set of the sails.

Under way:

This is when a boat has movement through the water.

Veer:

When the wind shifts in a clockwise direction.

Weather side:

The side upon which the wind is blowing.

Windward:

The weather side or that from which the wind blows.