Meaning of sea In English

• 0 the salty water that covers a large part of the surface of the earth, or a large area of salty water, smaller than an ocean, that is partly or completely surrounded by land:

  • the Mediterranean Sea

  • We went swimming in the sea.

  • The sea was calm/smooth/choppy/rough when we crossed the Channel.

  • The refugees were at sea (= in a boat on the sea a long way from land) for 40 days before reaching land.

  • When we moved to the US, we sent our things by sea (= in a ship).

  • We spent a week by the sea (= on the coast) this year.

  • Soon we had left the marina and were heading towards the open sea (= the part of the sea a long way from land).

  • The teacher looked down and saw a sea of smiling faces.

  • The boats will put (out) to sea on this evening's high tide.

• 1 a large area of salt water that is partly or completely surrounded by land, or the salt water that covers most of the surface of the earth:

  • [ C ] the Caribbean/Mediterranean Sea

  • [ C ] The seas are filled with creatures we know nothing about.