Definitions for "Vocalise"
Singing several notes on one vowel, used for vocal display in opera. 19th and 20th century composers such as Rachmaninoff and Ravel wrote entirely wordless pieces for voice under the generic title “vocalise”.
A succession of parachromatic vowel sounds or analogous speech sounds.
sing with one vowel
utter with vibrating vocal chords
utter speech sounds
Keywords:  clearly, express
express or state clearly