Dhyana Mishra, speller 5, air-typed her way to spelling "vitiation" correctly. It's the quality or state of being made ineffective either wholly or in part.
Dhyana is a Florida seventh grader, and tied for 46th place in 2016, the last time she was here. Her sister, Stuti, placed 19th in 2011 and was the national runner-up in 2012.