The birds fly in the air.

Meaning: This sentence describes birds using their wings to move through the Earth's atmosphere.

Choice of Words: Birds are warm-blooded vertebrates with feathers, wings, and a beak. Fly means to move through the air using wings. In indicates the location or position of something within something else. Air is the mixture of gases that surrounds the Earth.

Alternative Expressions

Related Expressions

• Birds fly freely in the air.
• Fish swim water, birds fly air.
• Birds fly freely through air.
• Birds fly swiftly through air.
• Colorful feathers help birds fly through air.
• Birds fly through the fresh air.
• Birds fly through the air.
• Birds fly freely through the air.
• Birds fly high, soaring through the air.
• Birds fly in the air.