(~s)
Frequency: The word is one of the 1500 most common words in English.
1.
The ~ is the salty water that covers about three-quarters of the earth’s surface.
Most of the kids have never seen the ~...
All transport operations, whether by ~, rail or road, are closely monitored at all times.
= ocean
N-SING: the N, also by N
2.
You use ~s when you are describing the ~ at a particular time or in a particular area. (LITERARY)
He drowned after 30 minutes in the rough ~s...
N-PLURAL
3.
A ~ is a large area of salty water that is part of an ocean or is surrounded by land.
...the North Sea.
...the huge inland ~ of Turkana.
N-COUNT; N-IN-NAMES
4.
At ~ means on or under the ~, far away from land.
The boats remain at ~ for an average of ten days at a time...
PHRASE: v-link PHR, PHR after v
5.
If you go or look out to ~, you go or look across the ~.
...fishermen who go to ~ for two weeks at a time...
He pointed out to ~.
PHRASE: PHR after v