Children laughed, joy filled air.

Meaning: The children were laughing, and their happiness filled the air.

Choice of Words: Children are young people, usually under the age of 18. Laughed is a verb that means to make a sound of amusement or happiness. Joy is a noun that refers to a feeling of great happiness or pleasure. Filled is a verb that means to make something full. Air is the mixture of gases that surrounds the Earth.