authenticationmark
nounUK /ɔːˌθentɪˈkeɪʃən mɑːk/
US /ɔːˌθentɪˈkeɪʃən mɑːrk/
A special sign that shows something is real and can be trusted.
The shiny sticker on the toy is an authentication mark that proves it is genuine.
RELATED WORDS
OTHER MEANINGS
2. A small printed symbol used to prove that a document is official.
The passport had an authentication mark in the corner.
3. A digital code that confirms a product was made by the right company.
Scan the authentication mark on the box to check if the shoes are real.
4. A maker's sign pressed into metal or pottery to show who made it.
The old vase had an authentication mark on its base.