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

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v. Present participle of validate.

adj. serving to support or corroborate

"They need to realize, at the least, that college admissions Deciders have a vested interest in validating their own expensive educations and are thus likely to look dimly at applicants who have been told they don't need books."

validated    validates    validating   

change    modify    alter    support    substantiate   

valid    validation    validator   

confirm