They sing a happy song.

Meaning: This sentence describes a group of people expressing their joy and happiness through singing a song that conveys positive emotions.

Choice of Words: Sing is the act of producing musical sounds with the voice. Happy describes a feeling of joy and contentment. Song is a musical composition intended to be sung. This sentence depicts a group of people using their voices to create a musical piece that expresses joy and happiness.

Alternative Expressions

The children sing a cheerful tune.

Meaning: This means that a group of young people are making a happy sound with their voices.

Choice of Words: The word "children" refers to young people. "Sing" means to make a pleasant sound with your voice. "Cheerful" describes the mood of the tune, which is bright and upbeat.

The choir sings a beautiful melody.

Meaning: This means that a group of singers are making a lovely sound with their voices.

Choice of Words: The word "choir" refers to a group of singers. "Sing" means to make a pleasant sound with your voice. "Beautiful" describes the quality of the melody, which is pleasing to the ear.

Related Expressions