Third-person singular simple present indicative form of knell.(verb)
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Use "knells" in a sentence
"This is going to be a pretty simple November ... and the first of many coming death knells for Democrats ... unless the pull away from the precipice."
"P2p and the digital media represent tremendous opportunities, not death knells."
"What would you say to a soft, brown face, aureoled in a thousand ripples of gray-black hair, which knells suddenly: “Do you trust white people?”"