Many people use the terms sea and ocean thinking they are the same thing, but there are major differences between them. To understand the way in which they differ, we need to look at their definition. Both the terms are considered synonyms of each other which are not entirely accurate. Ocean is a large part of the water that spreads all over the world. Although oceans are divided into different parts and names, they are mainly connected and form one vast world ocean. Sea, on the other hand, is water that covers most of the surface and is adjoined by land. There are many different seas in the world which have various names depending on their location. The main difference between them is that oceans are larger while seas are smaller in sizes. Another major difference between them is that oceans are deeper as compared to seas which may or may not be deep. Most of the oceans fall in the region of the abyssopelagic zone in which any kind of water that is present is no way near the shores and deeper than usual. Therefore, seas are not as unfathomable as compared to oceans. Because the sea is always near land the wildlife, it has consisted of a variety of species while oceans have few species which mostly are bacteria or other plants. Oceans can influence the world’s weather when they transfer currents which result in the hot or cold air while seas are not able to do that, and themselves depend on oceans. There are five main oceans one planet earth while the number of seas is numerous. A sea can be part of an ocean while ocean cannot be a part of the sea. The biggest sea is smaller than the smallest ocean which gives an idea of how big the difference between the two can be.
Sea
The continuous body of salt water covering most of the earth's surface, especially this body regarded as a geophysical entity distinct from earth and sky.
Ocean
The entire body of salt water that covers more than 70 percent of the earth's surface.
Sea
A tract of water within an ocean.
Ocean
Abbr. Oc. or O. Any of the principal divisions of the ocean, including the Atlantic, Pacific, Indian, Arctic, and Southern Oceans.
Sea
A relatively large body of salt water completely or partially enclosed by land.
Ocean
A great expanse or amount
"that ocean of land which is Russia" (Henry A. Kissinger).
Sea
A relatively large landlocked body of fresh water.
Ocean
(countable) One of the large bodies of water separating the continents.
Sea
The condition of the ocean's surface with regard to its course, flow, swell, or turbulence
A rising sea.
Choppy seas.
Ocean
(uncountable) Water belonging to an ocean.
The island is surrounded by ocean
Sea
A wave or swell, especially a large one
A 40-foot sea that broke over the stern.
Ocean
(figuratively) An immense expanse; any vast space or quantity without apparent limits.
The boundless ocean of eternity
An ocean of difference
Sea
Something that suggests the ocean in its overwhelming sweep or vastness
A sea of controversy.
Ocean
A blue colour, like that of the ocean (also called ocean blue).
Sea
Seafaring as a way of life.
Ocean
The whole body of salt water which covers more than three fifths of the surface of the globe; - called also the sea, or great sea.
Like the odor of brine from the oceanComes the thought of other years.
Sea
(Astronomy) A lunar mare.
Ocean
One of the large bodies of water into which the great ocean is regarded as divided, as the Atlantic, Pacific, Indian, Arctic and Antarctic oceans.
Sea
A large body of salt water.
Ocean
An immense expanse; any vast space or quantity without apparent limits; as, the boundless ocean of eternity; an ocean of affairs.
You're gonna need an oceanOf calamine lotion.
Sea
The ocean; the continuous body of salt water covering a majority of the Earth's surface.
Ocean
Of or pertaining to the main or great sea; as, the ocean waves; an ocean stream.
Sea
A body of salt water smaller than an ocean, generally forming part of, or connecting with, an ocean or a larger sea.
The Mediterranean Sea, the Caribbean Sea, the Sea of Crete, etc.
Ocean
A large body of water constituting a principal part of the hydrosphere
Sea
A lake, especially if large or if salty or brackish.
The Caspian Sea, the Sea of Galilee, the Salton Sea, etc.
Ocean
Anything apparently limitless in quantity or volume
Sea
The swell of the sea; a single wave; billow.
Sea
Living or used in or on the sea; of, near, or like the sea.
Seaman, sea gauge, sea monster, sea horse, sea level, seaworthy, seaport, seaboard, etc.
Sea
(figurative) Anything resembling the vastness or turbulence of the sea.
Sea
(physics) A constant flux of gluons splitting into quarks, which annihilate to produce further gluons.
Sea
(planetology) A large, dark plain of rock; a mare.
The Apollo 11 mission landed in the Sea of Tranquility.
Sea
(planetology) A very large lake of liquid hydrocarbon.
Sea
One of the larger bodies of salt water, less than an ocean, found on the earth's surface; a body of salt water of second rank, generally forming part of, or connecting with, an ocean or a larger sea; as, the Mediterranean Sea; the Sea of Marmora; the North Sea; the Carribean Sea.
Sea
An inland body of water, esp. if large or if salt or brackish; as, the Caspian Sea; the Sea of Aral; sometimes, a small fresh-water lake; as, the Sea of Galilee.
Sea
The ocean; the whole body of the salt water which covers a large part of the globe.
I marvel how the fishes live in the sea.
Ambiguous between sea and landThe river horse and scaly crocodile.
Sea
The swell of the ocean or other body of water in a high wind; motion or agitation of the water's surface; also, a single wave; a billow; as, there was a high sea after the storm; the vessel shipped a sea.
Sea
A great brazen laver in the temple at Jerusalem; - so called from its size.
He made a molten sea of ten cubits from brim to brim, round in compass, and five cubits the height thereof.
Sea
Fig.: Anything resembling the sea in vastness; as, a sea of glory.
All the space . . . was one sea of heads.
Sea
A division of an ocean or a large body of salt water partially enclosed by land
Sea
Anything apparently limitless in quantity or volume
Sea
Turbulent water with swells of considerable size;
Heavy seas
Sea
Relating to or characteristic of or occurring on the sea or ships;
Sea stories
Sea smells
Sea traffic
Land vehicles
Ocean is a big reservoir of water that is spread all over the world. There are five main oceans which have been named because of their location, they are Pacific Ocean, Atlantic Ocean, Indian Ocean, Arctic Ocean, and the Southern Ocean. They make up almost 70% of the total area of the planet earth and have more than 95% of the total water that is present. Although they have been divided in different names, it is a continuous stream of water which is not separated by land. Therefore, oceans can be defined as water that is not surrounded by land. Due to this factor, most of the oceans are very deep and do not have any particular wildlife among them. They play a prominent role in shaping the world’s atmosphere and their currents which bring different types of winds across the globe help in defining the weather conditions. The major Ocean is the Pacific Ocean, which is twice the size of the second largest one. In a bigger perceptive it can be said that it is the land that is a part of oceans instead of saying that oceans are a part of this planet.
Sea is smaller than oceans but larger than rivers, the thing that differentiates them from others is that they have shore with them which connect them with the peace of land. Many different seas are depending on the location, and the biggest sea which is the Mediterranean is smaller than the Arctic Ocean which is the littlest among the five. Since sea has land connecting, they have a variety of wildlife present which can include fishes, animals, birds and even plants and bacteria. They are not as deep as compared to oceans because they have land connecting. The best way to define sea is that they are the part connecting the ocean with the land. Sea does not have the ability to influence anything on earth and actually are dependent on the oceans for any changes. Most of the seas fall I the epipelagic and mesopelagic zones which are near the surface of land and are part of the water which is not considered bottomless.
