There are 2 definitions of sea in English:

sea

Syllabification: sea

noun

(often the sea)
  • 1The expanse of salt water that covers most of the earth’s surface and surrounds its landmasses: a ban on dumping radioactive wastes in the sea rocky bays lapped by vivid blue sea [as modifier]: a sea view
    More example sentences
    • Sadly, the most easily-attainable sources for iodine are iodized salt and sea products, both of which can be taboo for pregnant women.
    • For Rachel, the vastness of the sea brings comfort and reassurance - it's a constant, she says, in a constantly changing world, and its great expanse puts our problems into perspective.
    • On Tybee Island, it was estimated that 43.82 acres of land would be lost to the sea.
    Synonyms
    ocean
    informal drink, briny, salt chuck
    literary deep, main, foam
    marine, ocean, oceanic; saltwater, seawater; oceangoing, seagoing, seafaring; maritime, naval, nautical
    technical pelagic
  • 1.1(Often in place names) a roughly definable area of this: the Black Sea
    More example sentences
    • The White Sea is an inlet of the Barents Sea on the northwest coast of Russia.
    • Population genetic structures of the mackerel (Scomber scombrus) and chub mackerel (Scomber japonicus) were studied in the Mediterranean Sea.
    • The goal of Save the North Sea project has been to reduce marine litter in the North Sea by changing the attitudes and behaviour of the people using the area.
  • 1.2(Often in place names) a large lake: the Sea of Galilee
    More example sentences
    • Surely the simplest answer to the Dead Sea saltiness question is that it is really a lake which has no outlet.
    • Once the world's fourth largest lake, the mighty Aral Sea is now in its death throes.
    • Since the beginning of time, the Sea of Galilee has provided its fishermen with a plentiful source of sustenance.
  • 1.3Used to refer to waves as opposed to calm sea: there was still some sea running
    More example sentences
    • My walk is an inelegant bob… as if navigating a choppy sea.
    • Using it first time in a crowded boat in a rough sea is a recipe for disaster.
  • 1.4 (seas) Large waves: the lifeboat met seas of thirty-five feet head-on
    More example sentences
    • At 6:30 the next morning, the seas were finally calm, and we pulled into the port of New York.
    • Two Plexiglas dioramas of a boat on storm-tossed seas depicted Ernest Shackleton's ill-fated South Pole expedition of 1914.
    • The artist's rising seas appear to be made of metal, stone, earth and glass, as well as water.
    Synonyms
  • 1.5A vast expanse or quantity of something: she scanned the sea of faces for Stephen
    More example sentences
    • From freezers and hardening tunnels to compressors, evaporators and air handling units, a sea of chilling and freezing equipment is available to the dairy industry.
    • We appreciate the flavorful food, recognizing in the candlelight the small, spicy leaves we snipped from a sea of greens that bright morning.
    • Others will find a healthful haven among a sea of fortified yogurts and dairy beverages.
    Synonyms
    expanse, stretch, area, tract, sweep, blanket, sheet, carpet, mass; multitude, host, profusion, abundance

Phrases

at sea

Sailing on the sea.
More example sentences
  • ‘Over time, the images evolved from ships in port to more elaborate ships at sea,’ said Freeman.
  • ‘Our goal is to provide the safest, highest quality U.S.-produced dairy products to our troops anywhere, ground troops or ships at sea,’ he says.
  • More explicitly, the building is an event on the horizon, like a ship at sea, with its assemblage of long white volumes rising out of a dense dark base clad in strips of charcoal-coloured slate.
(also all at sea) Confused or unable to decide what to do: he feels at sea with economics
More example sentences
  • Rather you want to throw out a lifeline to the subjects, who are clearly confused and all at sea.
  • As though that were not bad enough, we are now being told that our investment policy, which is momentous to any purposeful economic development, is all at sea.
  • While Kerry were solid enough at the back, they were all at sea at midfield, while they never threatened down the wings and this was the most disappointing aspect of all.
Synonyms
confused, perplexed, puzzled, baffled, mystified, bemused, bewildered, nonplussed, disconcerted, disoriented, dumbfounded, at a loss, at sixes and sevens
informal flummoxed, bamboozled, fazed, discombobulated
archaic mazed

by sea

By means of a ship or ships: other army units were sent by sea
More example sentences
  • And so we went by sea to Lowestoft.
  • Overseas visitors who arrived by sea had different characteristics than overseas visitors who arrived by air.
  • Londoners had been heating their houses with coal since the seventeenth century and this came by sea until the mid-nineteenth century, when the railways took over this trade.

go to sea

Set out on a voyage.
More example sentences
  • ‘The problem has been, when a ship goes to sea, the crew left behind doesn't have a platform to train on,’ said the Information Systems leading chief petty officer.
  • Despite going to sea on a boat with no windows, no fantail, no helipad or even a hatch to allow in some tension-breaking fresh salt air, submariners are still Sailors at heart.
  • This meets the need for a consistent, repeatable and auditable process to assess the ship's material state before it goes to sea.
Become a sailor in a navy or a merchant navy.
More example sentences
  • And sailors going to sea would take a hot cross bun with them to guard against sickness
  • She plans to take over parenting responsibility for her daughter while her husband, who has been working ashore, goes to sea next year.
  • To have a Warrant as opposed to a Commission, as NAM Rodgers tells us, derives from the military and governing classes going to sea and therefore symbolised both a social and professional difference.

on the sea

Situated on the coast.
More example sentences
  • Today I was able to sleep in, and after lunch, I borrowed Bin's car and drove to Narbonne, a town on the sea.
  • Unless we can find a place on the sea, that takes pets, for the same price, we won't be moving.
  • Tulum was not a city but rather an outpost on the sea - it may have been a temple, and some suggest it also may have been an ancient lighthouse.

put (out) to sea

Leave land on a voyage.
More example sentences
  • None of the planned projects is offshore, however, although in Europe, where suitable land is scarce, more and more projects are putting out to sea.
  • He puts to sea again and lands at Mytilene, where through Lysimachus and to his intense joy Pericles discovers his daughter.
  • I joined her in Kalkan for a cruise to Olympos, putting out to sea on a glorious October morning, the sun scorching hot on the scrubbed wooden deck and the water as blue as a kingfisher's back.

Origin

Old English , of Germanic origin; related to Dutch zee and German See.

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Word of the day astrogation
Pronunciation: ˌastrəˈgāSHən
noun
(in science fiction) navigation in outer space

There are 2 definitions of sea in English:

SEA

Line breaks: SEA

Entry from British & World English dictionary

abbreviation

  • Single European Act.

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