This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. To sign (a previously signed document), as for authentication.

n. A second or confirming signature, as on a previously signed document. Also called countersignature.

n. A sign or signal to be given to a sentry in order to obtain passage; a password.

n. A secret sign or signal given in answer to another.

n. a second signature added to a document to affirm the validity of the signature of the first person

v. to add a second signature to a document, affirming the validity of the signature of another person

v. 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.

adj. The signature of a secretary or other officer to a writing signed by a principal or superior, to attest its authenticity.

adj. A private signal, word, or phrase, which must be given in order to pass a sentry; a watchword.

To sign opposite to another signature; sign additionally; superadd one's signature to by way of authentication, attestation, or confirmation: as, charters signed by a king are countersigned by a secretary.

Figuratively, to attest in any way; confirm; corroborate.

n. A private signal, in the form of a word, phrase, or number, given to soldiers on guard, with orders to let no one pass unless he first gives that sign; a military watchword.

n. The signature of a secretary or other subordinate officer to a writing signed by the principal or superior, to attest its authenticity; a counter-signature.

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

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

n. a second confirming signature endorsing a document already signed

"The dancing and singing function primarily as a decoy from the main event happening in this inner sanctum; only we, the viewers, are ushered in to witness the underbelly, to glimpse the politics taking place in the dark, which countersign the frivolities in the flashing sunlight outside."

countersigned    countersigning    countersigns   

sign    positive identification    secret    arcanum    signature   

countersigned    countersigning   

watchword    sign    indorse    attest    signal   

trade-mark    correspondency    shibboleth    unbricker    catchword