Simple past tense and past participle of hint.(verb)
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Use "hinted" in a sentence
"His name hinted at his nature, for the kittim were said to be a host of dark angels who waged war against men and God."
"But Durbin hinted strongly that this was the one vehicle the party had left for securing the necessary votes."
"Mr Griffin hinted at this in his speech when he acknowledged longing for the day when Limewire [the most widely used P2P software product] will be the answer to a trivia question."