Dictionary Definition:
Vāk (˚ -- ) [Vedic vāc, for which the usual P. form is vācā] speech, voice, talk; only in cpd. ˚karaṇa talk, speaking, conversation, as kālyāṇa -- vāk -- karaṇa good speech A ii.97; iii.195, 261; iv.296 sq.; 328; v.155; abstr. ˚ta A i.38. Cp. vākya.