"air du temps" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "air du temps",
        "lit": "air of the time"
      },
      "expansion": "French air du temps (literally “air of the time”)",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from French air du temps (literally “air of the time”).",
  "head_templates": [
    {
      "args": {
        "1": "-",
        "nolinkhead": "1"
      },
      "expansion": "air du temps (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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          "source": "w"
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      "examples": [
        {
          "text": "With the global financial crisis still hitting hard, the air du temps today is a countrywide depressive mood.",
          "type": "example"
        },
        {
          "text": "What's hip with your kids: Emo is the air du temps in teenage fashion and music.",
          "type": "example"
        }
      ],
      "glosses": [
        "Current popular opinion or trends of a very large group of people, a city or a country."
      ],
      "id": "en-air_du_temps-en-noun-eKsCKNiB",
      "links": [
        [
          "trend",
          "trend"
        ]
      ],
      "related": [
        {
          "word": "zeitgeist"
        }
      ],
      "synonyms": [
        {
          "word": "trend"
        },
        {
          "word": "craze"
        },
        {
          "word": "fashion"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛɹ du tɑn/"
    }
  ],
  "word": "air du temps"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "air du temps",
        "lit": "air of the time"
      },
      "expansion": "French air du temps (literally “air of the time”)",
      "name": "bor"
    }
  ],
  "etymology_text": "Borrowed from French air du temps (literally “air of the time”).",
  "head_templates": [
    {
      "args": {
        "1": "-",
        "nolinkhead": "1"
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      "expansion": "air du temps (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "zeitgeist"
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        "English terms with usage examples",
        "English uncountable nouns"
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      "examples": [
        {
          "text": "With the global financial crisis still hitting hard, the air du temps today is a countrywide depressive mood.",
          "type": "example"
        },
        {
          "text": "What's hip with your kids: Emo is the air du temps in teenage fashion and music.",
          "type": "example"
        }
      ],
      "glosses": [
        "Current popular opinion or trends of a very large group of people, a city or a country."
      ],
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          "trend",
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      "tags": [
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    {
      "ipa": "/ɛɹ du tɑn/"
    }
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  "synonyms": [
    {
      "word": "trend"
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    {
      "word": "craze"
    },
    {
      "word": "fashion"
    }
  ],
  "word": "air du temps"
}