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Use "signposts" in a sentence
"The ability to stand in an intersection and look voluably for the signposts is not as clueless as it sounds to someone who refuses to admit they are disoriented."
"What historic or other signposts are available to the reader so that the story can be located in time and place?"
"The breakthrough, described in the journal Science, is based on 150 genetic "signposts" found in exceptionally long-lived people."