Definition of "life ring" []

• A life-buoy. (noun)

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• "He made sure that Toxe had hold of the life ring securely before he shouted to Dunross, "I think Gornt got sucked down and there was a woman …" and at once dived again."
• "A string of multicolored lights circled the pilothouse of the towboat, and an artificial, faded green wreath was tacked onto a large life ring on the side, near the name Sophie B."