Blue whale swam in the deep ocean.

Meaning: A whale with a blue color moved through water using fins inside a body of salt water that is far below the surface, suggesting the whale is in its natural habitat.

Choice of Words: Blue is a color often associated with water or the sky. Whale is a large marine mammal known for its size and intelligence. Swam means to move through water using fins. In means inside or within something. Deep is used to describe something that is far below the surface or very intense. Ocean is a large body of salt water that covers most of the Earth's surface.

Alternative Expressions

The blue whale swam through the deep ocean.

Meaning: This sentence also describes the action of a blue whale moving through the water in a deep part of the ocean, but it emphasizes that we are talking about a specific blue whale.

Choice of Words: The is used to show that we are talking about a specific blue whale. Through means to move from one side of something to the other. When you put them together, "The blue whale swam through the deep ocean" tells you about a specific blue whale that was moving through the water in a deep part of the ocean.

In the deep ocean, the blue whale swam.

Meaning: This sentence describes the action of a blue whale moving through the water in a deep part of the ocean, and it emphasizes that the whale is located in the deep ocean.

Choice of Words: In is used to show that the blue whale is located in the deep ocean. The is used to show that we are talking about a specific blue whale. When you put them together, "In the deep ocean, the blue whale swam" tells you about a specific blue whale that was moving through the water in a deep part of the ocean.

Related Expressions