"red flag" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Drapeaux en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions nominales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de red (« rouge ») et de flag (« drapeau »)."
  ],
  "forms": [
    {
      "form": "red flags",
      "ipas": [
        "\\ɹɛd flæɡz\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Métaphores en anglais",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Avertissement, signal d’alarme."
      ],
      "id": "fr-red_flag-en-noun-IHOkWAPO",
      "tags": [
        "figuratively"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en anglais à traduire",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Lexique en anglais de la politique",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Lexique en anglais du chemin de fer",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              281,
              289
            ]
          ],
          "ref": "JimConnell, The Red Flag, hymne du parti travailliste britannique, 1889",
          "text": "The people’s flag is deepest red,\nIt shrouded oft our martyred dead\nAnd ere their limbs grew stiff and cold,\nTheir hearts’ blood dyed its every fold.\nSo raise the scarlet standard high,\nBeneath its shade we’ll live and die,\nThough cowards flinch and traitors sneer,\nWe’ll keep the red flag flying here."
        }
      ],
      "glosses": [
        "Drapeau rouge."
      ],
      "id": "fr-red_flag-en-noun-FP50yyIV",
      "raw_tags": [
        "Chemin de fer"
      ],
      "topics": [
        "politics"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Métaphores en anglais",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Chiffon rouge (→ voir agiter le chiffon rouge)."
      ],
      "id": "fr-red_flag-en-noun-1oRykp59",
      "tags": [
        "figuratively"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɹɛd flæɡ\\"
    },
    {
      "audio": "En-au-red flag.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/3/3e/En-au-red_flag.ogg/En-au-red_flag.ogg.mp3",
      "ogg_url": "https://commons.wikimedia.org/wiki/Special:FilePath/En-au-red flag.ogg",
      "raw_tags": [
        "Australie"
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "Chiffon rouge",
      "word": "red rag"
    }
  ],
  "word": "red flag"
}

{
  "categories": [
    "Compositions en anglais",
    "Drapeaux en anglais",
    "Locutions nominales en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "Composé de red (« rouge ») et de flag (« drapeau »)."
  ],
  "forms": [
    {
      "form": "red flags",
      "ipas": [
        "\\ɹɛd flæɡz\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        "Métaphores en anglais"
      ],
      "glosses": [
        "Avertissement, signal d’alarme."
      ],
      "tags": [
        "figuratively"
      ]
    },
    {
      "categories": [
        "Exemples en anglais",
        "Exemples en anglais à traduire",
        "Lexique en anglais de la politique",
        "Lexique en anglais du chemin de fer"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              281,
              289
            ]
          ],
          "ref": "JimConnell, The Red Flag, hymne du parti travailliste britannique, 1889",
          "text": "The people’s flag is deepest red,\nIt shrouded oft our martyred dead\nAnd ere their limbs grew stiff and cold,\nTheir hearts’ blood dyed its every fold.\nSo raise the scarlet standard high,\nBeneath its shade we’ll live and die,\nThough cowards flinch and traitors sneer,\nWe’ll keep the red flag flying here."
        }
      ],
      "glosses": [
        "Drapeau rouge."
      ],
      "raw_tags": [
        "Chemin de fer"
      ],
      "topics": [
        "politics"
      ]
    },
    {
      "categories": [
        "Métaphores en anglais"
      ],
      "glosses": [
        "Chiffon rouge (→ voir agiter le chiffon rouge)."
      ],
      "tags": [
        "figuratively"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɹɛd flæɡ\\"
    },
    {
      "audio": "En-au-red flag.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/3/3e/En-au-red_flag.ogg/En-au-red_flag.ogg.mp3",
      "ogg_url": "https://commons.wikimedia.org/wiki/Special:FilePath/En-au-red flag.ogg",
      "raw_tags": [
        "Australie"
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "Chiffon rouge",
      "word": "red rag"
    }
  ],
  "word": "red flag"
}