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

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n. The act of corroborating, strengthening, or confirming; addition of strength; confirmation; as, the corroboration of an argument, or of information.

n. That which corroborates.

n. The act of corroborating, strengthening, or confirming; addition of strength; confirmation.

n. That which corroborates.

n. The act of strengthening; addition of strength.

n. The act of confirming; verification; confirmation: as, the corroboration of the testimony of a witness by other evidence.

n. That which corroborates.

n. confirmation that some fact or statement is true through the use of documentary evidence

"But every time he pushed for more evidence or corroboration from a witness, the story collapsed -- the actual person who was spat on turned out to be a friend of a friend."

confirmation   

bond of corroboration   

confirmation   

Alsatian    Americanization    Appalachian    Balkanization    Christianization    Confederation    Corp.    Croatian    Dalmatian    Desegregation   

confirmation    verification    refutation    attestation    falsity    disproof    correctness    unanimity    testimony    inducement