Fingerprint
WordNet
noun
(1) A smudge made by a (dirty) finger
(2) Biometric identification from a print made by an impression of the ridges in the skin of a finger; often used as evidence in criminal investigations
(3) A generic term for any identifying characteristic
"That tax bill had the senator's fingerprints all over it"
verb
(4) Take an impression of a person's fingerprints
WiktionaryText