sea

noun

\ ˈsē

Definition of sea

1a : a great body of salt water that covers much of the earth broadly : the waters of the earth as distinguished from the land and air

b : a body of salt water of second rank more or less landlocked the Mediterranean sea

c : ocean

d : an inland body of water —used especially for names of such bodies the Caspian Sea

2a : surface motion on a large body of water or its direction also : a large swell or wave —often used in plural heavy seas

b : the disturbance of the ocean or other body of water due to the wind

3 : something likened to the sea especially in vastness a sea of faces

4 : the seafaring life

5 : mare entry 2

at sea

1 : on the sea specifically : on a sea voyage

2 : lost, bewildered

to sea

: to or on the open waters of the sea

Other Words from sea Synonyms More Example Sentences Learn More about sea

Keep scrolling for more

Examples of sea in a Sentence

the seas of the Southern Hemisphere millions of plants and animals live in the sea

Recent Examples on the Web

Toufali said she's inspired by colors from the sea. — Elizabeth Gulino, House Beautiful, "You'd Never Guess These are Peel and Stick Tiles," 4 Mar. 2019 Great Jagged Narrow-Toothed sharks grew up to and surpassed 30 feet in length, roaming the ancient seas. — Chris Ciaccia, Fox News, "Mega-shark teeth dating back 25 million years discovered at Australian beach," 2 Oct. 2018 America’s first Underwater Museum of Art has opened in Florida for those willing to take the dive into the deep sea. — Kayla Fitzgerald, sacbee, "Take a deep dive into this Underwater Art Museum that opened this summer," 13 July 2018 Tiny ocean fossils in each core were studied to help researchers identify if fresh water was introduced into the sea. — Cliff Kapono, sandiegouniontribune.com, "Scripps scientists discover ancient glacier melt as source of climate cooling," 12 July 2018 On Thanksgiving Day 1999, two South Florida fisherman found González, who was then 5 years old, floating on an inner tube in the open sea. — Monique O. Madan, miamiherald, "New Supreme Court nominee Kavanaugh has ties to big Florida moments," 9 July 2018 There is a lot of humanity in the humble images of heroic struggles where the sea turns crimson and dying whales spout blood in sweet, thought-balloon-like shapes. — Milwaukee Journal Sentinel, "New England museums to visit this summer and fall," 4 July 2018 But over-fishing caused the sea's sturgeon population to plummet by the 1990s, and agencies worldwide responded by placing strict regulations on how much can be harvested. — Bailey Loosemore, The Courier-Journal, "Kentucky is swimming with potential to take over the US caviar market," 28 June 2018 Take the famed No Man’s Land scene in Wonder Woman; Diana stands out in lurid color against a sea of gray male soldiers, towering over them, her long locks twirling with her sword. — Jill Gutowitz, Glamour, "Captain Marvel Is a New Kind of Female Hero," 11 Mar. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sea.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.