vivo use
vivo validation
vivo visualization
viz.
vocabulary
vocabulary acquisition

vocabulary development
vocabulary knowledge
vocabulary learning
vocabulary size
vocal activity
vocal behavior
vocal characteristics

vocal communication
vocal cord dysfunction
vocal cord palsy
vocal cord paralysis
vocal cords
vocal fold mucosa
vocal fold paralysis

vocal folds
vocal function
vocal individuality
vocal interaction
vocal learning
vocal performance
vocal repertoire

vocal response
vocal signals