Simple past tense and past participle of umpire.(verb)
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Use "umpired" in a sentence
"Chad VanHuis, who once umpired Leonard's middle-school baseball games, remembered opposing coaches asking to see his birth certificate."
"Actually, does anyone know the highest level at which a female has umpired?"
"Judge Arthur Gonzalez, who umpired Chrysler's case, said in court papers that legal precedents allowed the auto maker to be sold "free and clear" of such liabilities."