sea
Definition
The salt water that covers most of the Earth's surface; a large expanse of water; a large quantity of something
To remember it
Picture the colorful, wavy lines at the bottom of this picture. They represent the sea, where you can see seashells and fish swimming around.
Examples
- A1
We spent the holidays by the sea and swam every day.
- A1
The sea is very calm today — perfect for sailing.
- A2
The sailor had spent thirty years at sea and knew every route across the Atlantic.
- A2
A sea of faces stared up at the speaker from the packed auditorium.
- B1
Rising sea levels caused by climate change threaten coastal cities and low-lying island nations across the world.
- B1
The Dead Sea is the saltiest body of water on Earth — so salty that you can float effortlessly on its surface.
- B2
The Mediterranean Sea has been described as the cradle of Western civilisation — the commercial, cultural, and military highway along which Greek, Phoenician, Roman, Arab, and later European powers built empires and exchanged ideas.
- B2
Deep sea exploration has revealed extraordinary biodiversity in ecosystems that survive without sunlight, challenging assumptions about the conditions necessary for life and providing potential models for life on other worlds.
