seawater

noun

sea·​wa·​ter ˈsē-ˌwȯ-tər 

-ˌwä-

: water in or from the sea

Examples of seawater in a Sentence

Recent Examples on the Web

Riyadh, for instance, cannot survive more than a week without its seawater processing plants, as Fortune noted last week. —Jim Edwards, Fortune, 9 Mar. 2026

The technology removes salt from seawater — most commonly by pushing it through ultra-fine membranes in a process known as reverse osmosis — to produce the freshwater that sustains cities, hotels, industry and some agriculture across one of the world’s driest regions. —ABC News, 8 Mar. 2026

Among them, Kisawa Sanctuary is known for using 3D printing technology to create natural building materials, essentially a mixture of sand and seawater. —Melanie Van Zyl, Travel + Leisure, 6 Mar. 2026

Alawites trekked for miles to the seashore, bringing home jugs of seawater to fashion salty dough for bread. —Literary Hub, 4 Mar. 2026

Word History

First Known Use

before the 12th century, in the meaning defined above

Rhymes for seawater

• backwater
• bathwater
• blackwater
• breakwater
• deepwater
• edgewater
• feedwater
• floodwater
• freshwater
• granddaughter
• groundwater
• headwater

Kids Definition

seawater

noun

sea·​wa·​ter ˈsē-ˌwȯt-ər 

-ˌwät-

: water in or from the sea