atoll

noun

  1. A coral island consisting of a reef surrounding a lagoon

geographical name

  1. Island of the central Pacific in Hawaii; westernmost of the Leeward Islands

geographical name

  1. U.S. island in the Line Islands in the central Pacific Ocean area 1 square mile (2.6 square kilometers)

idiom

  1. To have a serious, bad effect on someone or something to cause harm or damage

    "If you keep working so hard, the stress will eventually take its toll."

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