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See more synonyms for seaway on Thesaurus.com
  1. a way over the sea.
  2. the open sea.
  3. the progress of a ship through the waves.
  4. a more or less rough sea: a hard vessel to steer in a seaway.
  5. a canal, enlarged river, etc., giving access to a landlocked port by oceangoing vessels.
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Origin of seaway

before 1000; Middle English seewey, Old English sǣweg. See sea, way1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for seaway

Historical Examples

  • The crew cheered, for it was a splendid shot at that distance and in a seaway.

    The Black Buccaneer

    Stephen W. Meader

  • Reefing on a bowsprit in a seaway is a difficult and dangerous job.

  • A craft so small could not reasonably be expected to live in such a seaway.

  • Loaded an ore boat with avgas and ammo and ran it up the Seaway.

    The Syndic

    C.M. Kornbluth

  • To be five miles from shore in a seaway in kayaks like ours was a sensation.

    Crooked Trails

    Frederic Remington

British Dictionary definitions for seaway


  1. a waterway giving access to an inland port, navigable by ocean-going ships
  2. a vessel's progress
  3. a rough or heavy sea
  4. a route across the sea
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012