countersign

Primary Meanings of countersign

1.
vn
add one's signature to after another's to attest authenticity
a second confirming signature endorsing a document already signed
2.
n
a secret word or phrase known only to a restricted group
Full Definitions of countersign
1

v add one's signature to after another's to attest authenticity

“You must countersign on this line of the contract”
Type of:
sign
be engaged by a written agreement

n a second confirming signature endorsing a document already signed

Synonyms:
countersignature
Type of:
signature
your name written in your own handwriting
2

n a secret word or phrase known only to a restricted group

Synonyms:
parole, password, watchword, word
Type of:
arcanum, secret
information known only to a special group
positive identification
evidence proving that you are who you say you are; evidence establishing that you are among the group of people already known to the system; recognition by the system leads to acceptance

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