Singer (noun)

1. A person who sings, especially professionally.
2. A performer who uses their voice to produce music.
3. A person who sings as a hobby.
4. A person who sings in a choir or ensemble.
5. A person who is known for their singing ability.

Origin:

Old english singere, of germanic origin; related to german sänger, also to sing.

Examples:

1. She's a famous singer.
2. The singer has a beautiful voice.
3. He is a singer in a rock band.
4. The singer performed on stage.
5. The singer was accompanied by a pianist.