The term 'TOURIST's reference' can be broken down into two crossword solutions: MAP (3 letters) and AREAMAP (7 letters). MAP stands for 'Modified American Plan, ' which is a type of hotel rate that includes meals. AREAMAP stands for 'Area MAP, ' which is a MAP of a specific area, usually used by tourists to help them navigate their way around. Both of these terms are useful references for tourists, as they provide information about the area they are visiting.