Question This sign means: Answers Stop. Merge. Upcoming change in direction. Explanation An eight-sided red sign means "stop." Take a FREE Practice Test Now This questions appears in the following tests: Wisconsin Practice Test Iowa Practice Test Arizona Practice Test Connecticut Practice Test Tennessee Practice Test Maine Practice Test California Practice Test Illinois Practice Test Georgia Practice Test Wyoming Practice Test Kansas Practice Test Arkansas Practice Test Kentucky Practice Test Maryland Practice Test Delaware Practice Test District Of Columbia Practice Test South Dakota Practice Test Mississippi Practice Test Alabama Practice Test