Dictionary.com
Thesaurus.com
Synonyms

seaway

American  
[see-wey] / ˈsiˌweɪ /

noun

  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.


seaway British  
/ ˈsiːˌweɪ /

noun

  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

"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

Etymology

Origin of seaway

before 1000; Middle English seewey, Old English sǣweg. See sea, way 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

In fact, the narrow seaway was not mentioned at all in the JCPOA.

From BBC Jun. 18, 2026

The results highlight the importance of the Tasman Gateway, a seaway between Antarctica and Australia.

From Science Daily Apr. 7, 2026

A vast seaway with swift currents separated North and South America, and most animals were unable to cross -- with a few notable exceptions.

From Science Daily May 28, 2024

The accident, in which 27 people including a 7-year-old girl died, is the worst on record involving migrants in the narrow seaway separating France and Britain.

From Reuters Nov. 9, 2023

His cargo had shifted and the seaway was rough.

From You Should Worry Says John Henry by McHugh, Hugh

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training