What is the term used to describe a group of people singing same part?

The term used to describe a group of people singing the same part is unison. Unison singing occurs when all the singers or players in a group sing or play the same notes at the same time, resulting in a unified and harmonious sound. It is a fundamental element of music, creating a sense of togetherness and consonance. Unison singing is commonly used in choral music, hymns, anthems, and folk songs, among other genres.