As a Noun:
1. Words and music which are sung together (with or without signs). English = song, singing.
2. A person who sings songs. English = singer.
3. A group of people who sing songs together. English = choir.
4. A song that Christians sing in order to praise God. English = hymn.
As a Verb or Adjective:
1. To make musical sounds with your voice (with or without signing at the same time). English = sing.