1. utter speech sounds

Synonym: vocalizephonate

2. utter with vibrating vocal chords

Synonym: voicesoundvocalize

3. express or state clearly

Synonym: articulateenunciatevocalize

4. pronounce as a vowel

e.g. between two consonants, this liquid is vowelized

Synonym: vocalizevowelizevowelise

5. sing (each note a scale or in a melody) with the same vowel

Synonym: vocalize