Meaning & use

saltwater

adjective·Everyday

Consisting of or living in water that contains a high concentration of salt, such as the sea.

See it in a sentence

Saltwater fish like tuna cannot survive long in a freshwater aquarium.

They filled the tank with saltwater to keep the coral and reef fish healthy.

A note on using this word

Saltwater is typically written as one word when used as an adjective before a noun, such as 'saltwater fish.'

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