fairway

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

• noun A stretch of ground free of obstacles to movement.
• noun Sports The part of a golf course covered with short grass and extending from the tee to the putting green.
• noun A navigable deep-water channel in a river or harbor or along a coastline.
• noun The usual course taken by vessels through a harbor or coastal waters.

from The Century Dictionary.

• noun The part of a road, river, harbor, etc., where the navigable channel for vessels lies.

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

• noun The navigable part of a river, bay, etc., through which vessels enter or depart; the part of a harbor or channel ehich is kept open and unobstructed for the passage of vessels.
• noun (golf) That part of a golf course between the tee and the green which is of closely mowed grass, as contrasted to the rough.

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

• noun golf the area between the tee and the green, where the grass is cut short
• noun any tract of land free from obstacles
• noun Military A channel either from offshore, in a river, or in a harbor that has enough depth to accommodate the draft of large vessels.(JP 4-01.6)
• noun nautical a navigable channel in a harbour, offshore etc; the usual course taken by vessels in such places.

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

• noun a tract of ground free of obstacles to movement
• noun the area between the tee and putting green where the grass is cut short
• noun the usual course taken by vessels through a harbor or coastal waters