The term 'stick for Canada's national sport' can be summarized as 'crosse, ' which is a six-letter word. Crosse is the name of the stick used in the sport of lacrosse, which is Canada's official national sport. Lacrosse is a team sport that originated among Indigenous peoples in North America and has been played for centuries. The game involves two teams of players using crosse sticks to pass, catch, and shoot a small rubber ball into the opposing team's goal.