Fingerprint (noun)

An impression of the markings on the finger, used for identification in criminal investigations and other official business.

Origin:

Early 20th century: from finger + print.

Examples:

1. The police took his fingerprints as part of the investigation.
2. He was asked to provide his fingerprints as part of the security clearance process.
3. Fingerprints are unique to each individual and are used for identification.
4. The fingerprints on the gun matched those of the suspect.
5. Fingerprint analysis is a crucial tool in forensic science.