Third-person singular simple present indicative form of prolong.(verb)
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Use "prolongs" in a sentence
"“Your name naturally prolongs itself into a sigh as I think what fun I should have had I been with you in England.”"
"The recall prolongs an unprecedented spell for Toyota in which the safety of its cars has been in the spotlight."
"The latest plan wasn't designed to help Greece, Mr. Trichet said, insisting that it merely "prolongs" measures taken after the credit crisis began in 2008."