Dictionary.com
Thesaurus.com
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.

See Examples For:

Thailand’s freshwater caves are inland; the coastal caves are saltwater.

From Los Angeles Times Jul. 29, 2026

Sprawling across 7,190 square feet, the lavish abode also boasts a saltwater pool, a tennis court, a greenhouse, an antique barn, a treehouse, and other features.

From MarketWatch Jul. 22, 2026

Congress established the National Academies in 1863 to advise on science—e.g., fixing the weights and measures of currency and methods for protecting ship hulls from saltwater corrosion.

From The Wall Street Journal Jul. 19, 2026

The unique conditions the process demanded -- pumping saltwater in and out to maintain a shallow depth -- were also the perfect environment for hungry wading birds.

From Barron's Jul. 15, 2026

But Fred liked being carried, and he sprayed a cool saltwater sneeze across her neck.

From "Nim’s Island" by Wendy Orr

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