Definition, Meaning & Synonyms

countersignature

Noun
/ˌkaʊntərˈsɪɡnətʃər/
Definition
A signature appended to a document by a second person to confirm the validity of the first signature.
Examples
  • Before the contract could be executed, it required her countersignature.
  • The agreement was not valid until it bore his countersignature.
Meaning
Countersignature is often used in legal and administrative contexts, where it serves to authenticate a signed document by having an additional individual also sign it, ensuring double verification.
Synonyms
  • endorsement
  • co-signature
  • secondary signature