"vain" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Adjectifs en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Lemmes en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en anglais issus d’un mot en ancien français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "sense": "en vain",
      "word": "in vain"
    },
    {
      "word": "vainly"
    }
  ],
  "etymology_texts": [
    "De l’ancien français vain (« vain »), du latin vanus « vide »."
  ],
  "forms": [
    {
      "form": "vainer",
      "ipas": [
        "\\veɪn.ɚ\\",
        "\\veɪn.ə\\"
      ],
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "vainest",
      "ipas": [
        "\\veɪn.ɪst\\"
      ],
      "tags": [
        "superlative"
      ]
    },
    {
      "form": "more vain",
      "ipas": [
        "\\ˌmɔɹ veɪn\\",
        "\\ˌmɔː veɪn\\"
      ],
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most vain",
      "ipas": [
        "\\ˌmoʊst veɪn\\",
        "\\ˌməʊst veɪn\\"
      ],
      "tags": [
        "superlative"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "adj",
  "pos_title": "Adjectif",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en anglais",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "He died in a vain attempt to save his comrade.",
          "translation": "Il mourut dans une vaine tentative de sauver son camarade."
        },
        {
          "text": "The Vain Little Mouse",
          "translation": "La Vaniteuse petite souris"
        }
      ],
      "glosses": [
        "Frivole, vain, vaniteux."
      ],
      "id": "fr-vain-en-adj-jyjL8hDX"
    }
  ],
  "sounds": [
    {
      "ipa": "\\veɪn\\"
    },
    {
      "ipa": "\\veɪn\\"
    },
    {
      "audio": "En-us-vain.ogg",
      "ipa": "veɪn",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b6/En-us-vain.ogg/En-us-vain.ogg.mp3",
      "ogg_url": "https://commons.wikimedia.org/wiki/Special:FilePath/En-us-vain.ogg",
      "raw_tags": [
        "États-Unis"
      ]
    }
  ],
  "word": "vain"
}

{
  "categories": [
    "Adjectifs en anglais",
    "Lemmes en anglais",
    "Mots en anglais issus d’un mot en ancien français",
    "anglais"
  ],
  "derived": [
    {
      "sense": "en vain",
      "word": "in vain"
    },
    {
      "word": "vainly"
    }
  ],
  "etymology_texts": [
    "De l’ancien français vain (« vain »), du latin vanus « vide »."
  ],
  "forms": [
    {
      "form": "vainer",
      "ipas": [
        "\\veɪn.ɚ\\",
        "\\veɪn.ə\\"
      ],
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "vainest",
      "ipas": [
        "\\veɪn.ɪst\\"
      ],
      "tags": [
        "superlative"
      ]
    },
    {
      "form": "more vain",
      "ipas": [
        "\\ˌmɔɹ veɪn\\",
        "\\ˌmɔː veɪn\\"
      ],
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most vain",
      "ipas": [
        "\\ˌmoʊst veɪn\\",
        "\\ˌməʊst veɪn\\"
      ],
      "tags": [
        "superlative"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "adj",
  "pos_title": "Adjectif",
  "senses": [
    {
      "categories": [
        "Exemples en anglais"
      ],
      "examples": [
        {
          "text": "He died in a vain attempt to save his comrade.",
          "translation": "Il mourut dans une vaine tentative de sauver son camarade."
        },
        {
          "text": "The Vain Little Mouse",
          "translation": "La Vaniteuse petite souris"
        }
      ],
      "glosses": [
        "Frivole, vain, vaniteux."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\veɪn\\"
    },
    {
      "ipa": "\\veɪn\\"
    },
    {
      "audio": "En-us-vain.ogg",
      "ipa": "veɪn",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b6/En-us-vain.ogg/En-us-vain.ogg.mp3",
      "ogg_url": "https://commons.wikimedia.org/wiki/Special:FilePath/En-us-vain.ogg",
      "raw_tags": [
        "États-Unis"
      ]
    }
  ],
  "word": "vain"
}