A sign or warning marker, something you need to see and pay attention to in a dream, Isa. 8:1 Other Explanations for BillboardContinue ExploringBillboard To see a billboard in your dream, is a sign or message that you need to take note of in…Billboard İmplies something will be revealed publicly without reservationBillboard 1. Personal goals and ambitions. 2. Possible message is being conveyed from one level of consciousness to another.