clue in

1. Also, clue up. Give someone guiding information, as in It's time someone clued us in on what's happening, or I hope they clue us up soon. This expression, which uses the verb clue in the sense of “inform,” is sometimes put simply as clue (as in I'll clue you—this isn't going to work). [Colloquial; mid-1900s] Also see not have a clue.

Example Sentences

The idea that appeals to him the most comes from a crumb of a clue in Follett’s archives — a letter from the sailor Anderson that Follett received a short time before her disappearance.

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Listeners spent the weekend looking for clues in the couple’s “Architectural Digest” home tour and their red carpet appearances.

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Scientists at Johns Hopkins University may have uncovered a promising clue in the long-running effort to confirm the existence of dark matter.

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We matched visual clues in the pictures of the tents - including a bend in the road alongside the grassy area where they were pitched - to a location on Google streetview.

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Authorities say they have no clues in the Sacramento pair’s disappearance, and loved ones have been left wondering and searching.

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Related Words

• address 
• advise 
• alert 
• caution 
• hint 
• inform 
• instruct 
• notify 
• order 
• predict 
• prepare 
• prompt 
• recommend 
• remind 
• signal 
• suggest 
• summon 
• tell 
• threaten 
• urge