See Mutation, vocalic. 
Voice, production of,
Voiced sounds,
Voiceless: 
  laterals,
  nasals,
  sounds,
  trills,
  vowels,
“Voicelessness,” production of,
Volition expressed in speech,
Vowels,

W

Walking, a biological function,
Washo (Nevada),
Welsh,
Westermann, D.,
Whisper,
Whitman,
“Whom,” use and drift of,
Word,
  definition of,
  syntactic origin of complex,
  “twilight” type of,
  types of, formal,
Written language,

Y

Yana (N.  California), Yiddish, Yokuts (S.  California), Yurok (N.W.  California),
  Y. Indians,

Z

Zaconic dialect of Greek,