"cool head" meaning in English

{
  "forms": [
    {
      "form": "cool heads",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "cool head (plural cool heads)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "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": "quotation"
        },
        {
          "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": "quotation"
        },
        {
          "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": "quotation"
        },
        {
          "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": "quotation"
        }
      ],
      "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"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-cool head.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/2a/En-au-cool_head.ogg/En-au-cool_head.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/2a/En-au-cool_head.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "cool head"
}

{
  "derived": [
    {
      "word": "cool-headed"
    },
    {
      "word": "cooler heads will prevail"
    }
  ],
  "forms": [
    {
      "form": "cool heads",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "cool head (plural cool heads)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with audio links",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "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": "quotation"
        },
        {
          "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": "quotation"
        },
        {
          "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": "quotation"
        },
        {
          "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": "quotation"
        }
      ],
      "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"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-cool head.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/2a/En-au-cool_head.ogg/En-au-cool_head.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/2a/En-au-cool_head.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "cool head"
}