Question 1: Let’s go out Route 119. == Let’s go TO Route 119.? If not, could you tell me why? If it mean "to" it would say so. It means "Let's leave here ON Route 119 " Question 2: In this case, what does the word 'out' refer to? (the direction or something else?) Out refers to leaving where you are. If I want to leave Toronto on Highway 401 I could say "Let's go out highway 401" - it is really the same as saying "Let's go out the door" - the "out" refers to the thing you are using to leave the house