password, watchword, word, parole, countersign(noun)
a secret word or phrase known only to a restricted group
"he forgot the password"
a second confirming signature endorsing a document already signed
add one's signature to after another's to attest authenticity
"You must countersign on this line of the contract"
a second signature added to a document to affirm the validity of the signature of the first person
to add a second signature to a document, affirming the validity of the signature of another person
to sign on the opposite side of (an instrument or writing); hence, to sign in addition to the signature of a principal or superior, in order to attest the authenticity of a writing
the signature of a secretary or other officer to a writing signed by a principal or superior, to attest its authenticity
a private signal, word, or phrase, which must be given in order to pass a sentry; a watchword
Origin: [Counter- + sign: cf. F. contresigner.]
In military terminology, a countersign is a sign, word, or any other signal previously agreed upon and required to be exchanged between a sentry or guard and anybody approaching his or her post. The term usually encompasses both the sign given by the approaching party as well as the sentry's reply. However, in some armies, the countersign is strictly the reply of the sentry to the password given by the person approaching. A well-known sign/countersign is that used by the Allied forces on D-Day during World War II: the challenge/sign was "flash", the password "thunder", and the countersign "Welcome".
Dictionary of Military and Associated Terms
A secret challenge and its reply. See also challenge; password.
The numerical value of countersign in Chaldean Numerology is: 8
The numerical value of countersign in Pythagorean Numerology is: 1
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"countersign." Definitions.net. STANDS4 LLC, 2018. Web. 18 Feb. 2018. <https://www.definitions.net/definition/countersign>.