What is the meaning of vocalizing?

noun

• The act of singing vocal music.
  • synonyms: singing

verb

• Utter with vibrating vocal chords.
  • synonyms: voice, sound, vocalize, vocalise
• Sing (each note a scale or in a melody) with the same vowel.
  • synonyms: vocalize, vocalise
• Pronounce as a vowel.
  • usage: "between two consonants, this liquid is vowelized"
  • synonyms: vocalize, vocalise, vowelize, vowelise
• Express or state clearly.
  • synonyms: articulate, enunciate, vocalize, vocalise
• Utter speech sounds.
  • synonyms: vocalize, vocalise, phonate