noun
- an impression or mark made by the thumb, especially the pattern of ridges used for identification
Examples
- The detective found a clear thumbprint on the glass.
- She pressed her thumbprint onto the ink pad for identification.
- The phone unlocks when it recognizes my thumbprint.
- Police collected thumbprints from all the suspects.
- The contract required a thumbprint as well as a signature.
- Each person’s thumbprint is unique and can be used for security.
- The thumbprint on the document proved who had handled it.