A sea is a large body of salt water that is surrounded in whole or in part by land.
Owing to the present state of continental drift,
Former changes in the sea levels have left continental shelves, shallow areas in the sea close to land.
The sea is an essential aspect of human trade, travel, mineral extraction, and power generation.
I listened to little oral essays on jelly blubbers, men-o'-war, sea slugs, blue-bottles, giant crabs, and even prawns.
Most of the class was at sea after the first week.
She sells sea shells by the sea shore, but the shells she sells aren't sea shells, I'm sure.
Used in the Beginning of Sentence
sea bed; river bed; lake bed; There's a lot of trash on the bed of the river.
Used in the Ending of Sentence
“Waves Against the Sand,” to music by Martinu, which opened the program, filled the stage space with whorling patterns of dancers surging with the gentle but ceaseless momentum of the sea.
The children were splashing each other playfully in the sea.
The mangrove becomes a solid barrier there, which by its strong, arched and labyrinthine roots collects the sweepage of the fresh water and the salt and holds back the parent sea.
Meaning of sea for the defined word.
Grammatically, this word "sea" is a noun, more specifically, a countable noun and a singularia tantum.