Definition of "sole survivor" []

• The only person to survive an incident in which many people died (noun)

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• "The marquess has no son, but only two brothers, both deceased, one nephew, also deceased, and a great-nephew — me, the sole survivor and heir."
• "Something or someone had assured him that there was no need to pursue the matter, and there were no witnesses who could do that, save one: the sole survivor of the cargo vessel Feronia."
• "On the death of the Bishop of Lincoln, in 1584, Goldwell became the sole survivor of the ancient English hierarchy."