clue

US /kluː/
UK /kluː/
"clue" picture
1.

a piece of evidence or information used in the detection of a crime or solving of a mystery

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The police found a crucial clue at the crime scene.
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I have no clue how to solve this puzzle.
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hintindicationsignpointerlead
1.

to give someone information that helps them to understand or solve something

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Can you clue me in on what's happening?
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The detective was trying to clue together the pieces of the mystery.
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informenlightenapprisebrieffill in