The term 'STOP ALONG THE HIGHWAY' can be broken down into two crossword solutions: INN (3 letters) and MOTORINN (8 letters). An INN is a type of lodging, usually a small establishment with basic accommodations. A motorinn is a type of INN that caters to travelers in automobiles, providing parking and other services for motorists. Both inns and motorinns are typically located along highways and provide a place for travelers to rest and refuel.