Fingerprint
Definition 1 of 3

Crime Scene Clue
Fingerprints are often used in detective stories to solve crimes.

The detective lifted the clear fingerprint from the glass.
Personal Identifier
Every person's fingerprint is unique, like a personal signature.

Her fingerprint was the key to unlock her phone.
Figurative Use
'Leaving a fingerprint' can mean having an impact or influence.

His mentorship left a lasting fingerprint on my career.
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characteristicdesignimpressionmarkpatternprinttrace
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