sailing

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The skill required to operate and navigate a vessel; navigation.
• noun The sport of operating or riding in a sailboat.
• noun Departure or time of departure from a port.

from The Century Dictionary.

• noun The act of one who or of that which sails.
• noun The art or rules of navigation; the art or the act of directing a ship on a given line laid down in a chart; also, the rules by which a ship's tack is determined and represented on a chart, and by which the problems relating to it are solved.

from the GNU version of the Collaborative International Dictionary of English.

• noun The act of one who, or that which, sails; the motion of a vessel on water, impelled by wind or steam; the act of starting on a voyage.
• noun (Naut.) The art of managing a vessel; seamanship; navigation.
• noun (U. S. Navy) formerly, a warrant officer, ranking next below a lieutenant, whose duties were to navigate the vessel; and under the direction of the executive officer, to attend to the stowage of the hold, to the cables, rigging, etc. The grade was merged in that of master in 1862.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Motion across a body of water in a craft powered by the wind, as a sport or otherwise
• noun Navigation; the skill needed to operate and navigate a vessel
• noun The time of departure from a port
• adjective Travelling by ship
• verb Present participle of sail.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the activity of flying a glider
• noun the work of a sailor
• noun the departure of a vessel from a port
• noun riding in a sailboat