What message will be found on a red octagon-shaped sign? Question What message will be found on a red octagon-shaped sign? Answers Do not enter. One-way. Stop. Explanation An octagonal (eight-sided) sign always means "stop." You must always come to a complete stop at this sign. This questions appears in the following tests: Delaware Motorcycle Practice Test 97 Georgia Motorcycle Practice Test 8 Kansas Motorcycle Practice Test 78 Wyoming Motorcycle Practice Test 98