Signpost/ˈsaɪnpəʊst/ Definition 1 of 3Pro Tip 1/3Physical Landmarks Signposts are physical landmarks that help you locate or navigate in the real world. Turn left at the signpost with the museum symbol. Pro Tip 2/3Not Always Literal Sometimes 'signpost' refers to any clear guide or instruction, not just a physical sign. The giveaway clues acted as signposts toward the solution. Pro Tip 3/3Trail Following On hiking trails, signposts provide direction, preventing you from getting lost. At each signpost, we checked our map to stay on course.