Synonyms of sea

sea

noun

ˈsē 

as in ocean

the whole body of salt water that covers nearly three-fourths of the earth

millions of plants and animals live in the sea

Synonyms & Similar Words

• ocean
• waters
• Neptune
• blue
• brine
• deep
• seven seas
• depths
• basin
• high seas
• blue water
• main
• Davy Jones's locker

Example Sentences

Recent Examples of sea

As Hungary is landlocked, the lake is sometimes known as the country's internal sea, measuring nearly 80km long and about 14km wide at its widest point. — Lucy Handley, CNBC, 7 Oct. 2026

More remarkably, the technology can distinguish a little bit of tumor DNA from the sea of normal DNA in our blood. — H. Gilbert Welch, STAT, 6 Oct. 2026

Those moves have alarmed Japan, whose economy is dependent for its survival on open sea lines and which recently has been embroiled in a spat with China over remarks that Prime Minister Sanae Takaichi made about Taiwan. — Andy Browne, semafor.com, 6 Oct. 2026

The Ninth Wave depicts the sea after a night storm with the sun shining through. — Hikmat Mohammed, ARTnews.com, 6 Oct. 2026

Phrases Containing sea

• at sea
• sea breeze
• sea devil
• sea dog