The term 'TOOTH NEXT TO A CANINE' can be broken down into two crossword solutions: INCISOR (7 letters) and PREMOLAR (8 letters). An INCISOR is a type of tooth located in the front of the mouth, just next to the canine teeth. Incisors are used for cutting and biting food. Premolars, on the other hand, are located behind the canines and are used for grinding and crushing food. Both incisors and premolars are important for proper chewing and digestion.