seaway

noun

sea·​way ˈsē-ˌwā 

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

Johnson appointed the Atlantic-Pacific Interoceanic Canal Study Commission to determine the best site to use nuclear explosions to blast a seaway between the two oceans. —The Conversation, Fortune, 3 Apr. 2026

Johnson appointed the Atlantic-Pacific Interoceanic Canal Study Commission to determine the best site to use nuclear explosions to blast a seaway between the two oceans. —Christine Keiner, The Conversation, 2 Apr. 2026

This particular tyrannosaur lived near the seaway’s western coast, which was full of jungles and forests. —Laura Baisas, Popular Science, 12 Mar. 2026

Business The conflict in the Middle East has sent the price of crude oil soaring and largely shut down traffic through the Strait of Hormuz, a key seaway for tankers. —J. Scott Trubey, AJC.com, 9 Mar. 2026

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1

Rhymes for seaway

• airway
• allay
• archway
• array
• ashtray
• astray
• aue
• away
• ballet
• belay
• beltway
• beret

Kids 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