English to English

noun (n)

• a navigable body of water(noun.object)

  source: wordnet30
• a conduit through which water flows(noun.artifact)

  Synonym:
  watercourse
  

  source: wordnet30
• Heavy plank or timber extending fore and aft the whole length of a vessel's deck at the line of junction with the sides, forming a channel to the scuppers, which are cut through it. In iron vessels the waterway is variously constructed.(noun)

  source: webster1913