1
: the sea as a route for travel
also
: an ocean traffic lane
2
: a moderate or rough sea
3
: a deep inland waterway that admits ocean shipping
Examples of seaway in a Sentence
Recent Examples on the Web
This fossil-rich area in present day Montana, North Dakota, and South Dakota was formed by ancient rivers that flowed from the Rocky Mountains into a large interior seaway.
—
Laura Baisas, Popular Science, 9 Oct. 2024
With that land submerged beneath an interior seaway, the predator roamed the waters in search of mollusks, turtles and other shelled creatures to crush with its globular teeth.
—Sarah Kuta, Smithsonian Magazine, 24 Sep. 2024
The seaway, which stretched from the Arctic Ocean to the Gulf of Mexico and east through what is now Hudson Bay, essentially divided North America into three parts.
—Kristi Curry Rogers, Scientific American, 1 Feb. 2024
Mumbai has been given a makeover: Suspension bridges span its seaways, as well as its infamous slums, and new metro lines have been carved beneath its Art Deco and Indo-Saracenic facades and rumbling commuter railways.
—Alex Travelli, New York Times, 31 May 2024
See all Example Sentences for seaway 
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Laura Baisas, Popular Science, 9 Oct. 2024
With that land submerged beneath an interior seaway, the predator roamed the waters in search of mollusks, turtles and other shelled creatures to crush with its globular teeth.
—Sarah Kuta, Smithsonian Magazine, 24 Sep. 2024
The seaway, which stretched from the Arctic Ocean to the Gulf of Mexico and east through what is now Hudson Bay, essentially divided North America into three parts.
—Kristi Curry Rogers, Scientific American, 1 Feb. 2024
Mumbai has been given a makeover: Suspension bridges span its seaways, as well as its infamous slums, and new metro lines have been carved beneath its Art Deco and Indo-Saracenic facades and rumbling commuter railways.
—Alex Travelli, New York Times, 31 May 2024
See all Example Sentences for seaway
Dictionary Entries Near seaway
Cite this Entry
“Seaway.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seaway. Accessed 18 Nov. 2024.
Copy CitationKids Definition
seaway
noun
sea·way
-ˌwā 
1
a
: a route for travel on the sea
b
: an ocean traffic lane
2
: a rough sea
3
: a deep inland waterway that admits ocean shipping
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