Simple past tense and past participle of rival.(verb)
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Use "rivaled" in a sentence
"Mrs. King led the battle for civil rights longer than her husband did; Ms. Wasserstein rivaled some of the most established names in contemporary theatre with her creation of fully-drawn characters and artfully-crafted stories that went beyond the situation comedy or the angry scream; and Ms. Friedan literally wrote the book on defining where women saw themselves in our civilization."
"It was a huge role with a word count rivaled only by Hamlet."
"Another nasty list of titles rivaled only by the design of"