the salt water that covers most of the earth's surface and surrounds its continents and islands
to travel by sea
a cottage by the sea
The waste was dumped in the sea .
The wreck is lying at the bottom of the sea.
We left port and headed for the open sea (= far away from land) .
the cold seas of the Arctic
a sea voyage
a hotel room with sea view
often Sea , especially as part of a name
a large area of salt water that is part of an ocean or surrounded by land
the North Sea
the Caspian Sea
the movement of the waves of the sea
It was a calm sea.
The sea was very rough.
a large amount of sth that stretches over a wide area
He looked down at the sea of smiling faces before him.
on the sea, especially in a ship, or in the sea
It happened on the second night at sea.
They were lost at sea .
confused and not knowing what to do
I'm all at sea with these new regulations.
to become a sailor
far away from land where the sea is deepest
She fell overboard and was swept out to sea.
to leave a port or harbour by ship or boat
in a difficult situation where there are two equally unpleasant or unacceptable choices
there are many other people or things that are as good as the one sb has failed to get
In BrE , the usual word for the mass of salt water that covers most of the earth’s surface is the sea . In NAmE , the usual word is the ocean .
A swimmer drowned in the sea/ocean this morning.
The names of particular areas of seas, however, are fixed.
the Mediterranean Sea
the Atlantic Ocean
Sea/ocean are also used if you go to the coast on holiday/vacation.
We’re spending a week by the sea/at the ocean in June.
In NAmE it is also common to say
We’re going to the beach for vacation.