vo·cal/`vokḷ; ˈvəʊkəl/ adj 1 speaking publicly about your opinions in a way that makes a lot of people notice you 大声讲出自己看法的，直言不讳的: Environmental groups have become increasingly vocal. 环保团体的声音越来越大。 2 relating to the human voice, especially in singing 歌唱的; 嗓音的: vocal music 声乐