*tooth/tuθ; tuːθ/ n [C] plural teeth /tiθ; tiːθ/ 1 one of the hard white things in your mouth, used for biting food 牙，牙齿: Did you remember to brush your teeth? 你记得要刷牙吗？ 2 one of the pointed parts that sticks out from a comb, SAW etc 〔梳子、锯子等的〕齿 → see also 另见 have a sweet tooth (SWEET¹)