Vocalise is a musical term used to describe a vocal composition without words or lyrics. It is usually sung in a single line and often includes improvisation. Vocalise is often used as a warm-up exercise for singers, as it helps them to practice their vocal technique and range. It can also be used to explore different vocal timbres and textures. The term 'vocalise' comes from the French verb 'vocaliser, ' which means to SING. The crossword solution for the term 'vocalise' is 'SING.'