"cool head" meaning in English

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        "plural"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "derived": [
        {
          "word": "cool-headed"
        },
        {
          "word": "cooler heads will prevail"
        }
      ],
      "examples": [
        {
          "ref": "1829, James Fenimore Cooper, chapter 23, in The Wept of Wish-Ton-Wish:",
          "text": "[H]e had been engaged in divers hostile expeditions against the aborigines, and on all occasions had he shown a cool head and a resolute mind.",
          "type": "quote"
        },
        {
          "ref": "1896, Mark Twain, chapter 5, in Personal Recollections of Joan of Arc:",
          "text": "Joan had a cool head—the only cool head there—and she took command and brought order out of that chaos.",
          "type": "quote"
        },
        {
          "ref": "1984 June 8, Janet Maslin, “Film: Ghostbusters, with Murray and Aykroyd”, in New York Times, retrieved 2014-03-20:",
          "text": "It requires a cool head, which Mr. Murray most assuredly has, as well as the ability to remain unruffled by bizarre apparitions.",
          "type": "quote"
        },
        {
          "ref": "2006 November 19, Christine Gorman, “What Ails The CDC”, in Time, retrieved 2014-03-20:",
          "text": "A telegenic personality who connected easily with journalists, Gerberding quickly became the public face of the CDC—a rare cool head among a parade of increasingly confused health bureaucrats.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A calm, focused demeanor and mindset; a person having such characteristics."
      ],
      "id": "en-cool_head-en-noun-ZzAC3hjI",
      "links": [
        [
          "calm",
          "calm"
        ],
        [
          "focused",
          "focused"
        ],
        [
          "demeanor",
          "demeanor"
        ],
        [
          "mindset",
          "mindset"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) A calm, focused demeanor and mindset; a person having such characteristics."
      ],
      "tags": [
        "idiomatic"
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    }
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  "word": "cool head"
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{
  "derived": [
    {
      "word": "cool-headed"
    },
    {
      "word": "cooler heads will prevail"
    }
  ],
  "forms": [
    {
      "form": "cool heads",
      "tags": [
        "plural"
      ]
    }
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English idioms",
        "English lemmas",
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      "examples": [
        {
          "ref": "1829, James Fenimore Cooper, chapter 23, in The Wept of Wish-Ton-Wish:",
          "text": "[H]e had been engaged in divers hostile expeditions against the aborigines, and on all occasions had he shown a cool head and a resolute mind.",
          "type": "quote"
        },
        {
          "ref": "1896, Mark Twain, chapter 5, in Personal Recollections of Joan of Arc:",
          "text": "Joan had a cool head—the only cool head there—and she took command and brought order out of that chaos.",
          "type": "quote"
        },
        {
          "ref": "1984 June 8, Janet Maslin, “Film: Ghostbusters, with Murray and Aykroyd”, in New York Times, retrieved 2014-03-20:",
          "text": "It requires a cool head, which Mr. Murray most assuredly has, as well as the ability to remain unruffled by bizarre apparitions.",
          "type": "quote"
        },
        {
          "ref": "2006 November 19, Christine Gorman, “What Ails The CDC”, in Time, retrieved 2014-03-20:",
          "text": "A telegenic personality who connected easily with journalists, Gerberding quickly became the public face of the CDC—a rare cool head among a parade of increasingly confused health bureaucrats.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A calm, focused demeanor and mindset; a person having such characteristics."
      ],
      "links": [
        [
          "calm",
          "calm"
        ],
        [
          "focused",
          "focused"
        ],
        [
          "demeanor",
          "demeanor"
        ],
        [
          "mindset",
          "mindset"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) A calm, focused demeanor and mindset; a person having such characteristics."
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
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  "word": "cool head"
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