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Synonyms

saltwater

American  
[sawlt-waw-ter, -wot-er] / ˈsɔltˈwɔ tər, -ˈwɒt ər /

adjective

  1. of or relating to salt water.

  2. inhabiting salt water.

    a saltwater fish.


saltwater British  
/ ˈsɔːltˌwɔːtə /

adjective

  1. of, relating to, or inhabiting salt water, esp the sea

    saltwater fishes

"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

saltwater Scientific  
/ sôltwô′tər /
  1. Consisting of or living in salty water, especially seawater.


Etymology

Origin of saltwater

First recorded in 1520–30; salt 1 + water

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.

Network Rail has called the Victorian tunnel one of the most hostile environments on the UK rail network, where moisture, dripping saltwater and diesel soot accelerate wear on equipment.

From BBC • May 22, 2026

He waded through lagoon waters with saltwater crocodiles, landing on a white sand beach, carrying a sack of coconuts as a sign of goodwill.

From Barron's • May 18, 2026

The term describes how the crust stretches and thins in the middle, similar to the narrowed "neck" that forms when a piece of saltwater taffy is pulled apart.

From Science Daily • Apr. 25, 2026

Other impressive features on the grounds include a saltwater pool; vegetable gardens; a wildflower meadow; an orchard of cherry, apple, and peach trees; and a sports court—ideal for Paul’s training.

From MarketWatch • Apr. 8, 2026

We walked on the beach, fed blue corn chips to the seagulls, and munched on blue jelly beans, blue saltwater taffy, and all the other free samples my mom had brought from work.

From "The Lightning Thief" by Rick Riordan

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