"мрак" meaning in Bulgare

{
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en bulgare",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en bulgare issus d’un mot en vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en bulgare",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Bulgare",
      "orig": "bulgare",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Du vieux slave мракъ, mrakŭ (« obscurité »)."
  ],
  "forms": [
    {
      "form": "мрака",
      "raw_tags": [
        "Forme articulée courte"
      ],
      "tags": [
        "singular"
      ]
    },
    {
      "form": "мракът",
      "raw_tags": [
        "Forme articulée longue"
      ],
      "tags": [
        "singular"
      ]
    },
    {
      "form": "мракове",
      "tags": [
        "plural",
        "base-form"
      ]
    },
    {
      "form": "мраковете",
      "raw_tags": [
        "Forme articulée"
      ],
      "tags": [
        "plural"
      ]
    },
    {
      "form": "мрака",
      "tags": [
        "plural",
        "numeral"
      ]
    }
  ],
  "lang": "Bulgare",
  "lang_code": "bg",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Obscurité."
      ],
      "id": "fr-мрак-bg-noun-yynAE7h~"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "мрак"
}

{
  "categories": [
    "Lemmes en bulgare",
    "Mots en bulgare issus d’un mot en vieux slave",
    "Noms communs en bulgare",
    "bulgare"
  ],
  "etymology_texts": [
    "Du vieux slave мракъ, mrakŭ (« obscurité »)."
  ],
  "forms": [
    {
      "form": "мрака",
      "raw_tags": [
        "Forme articulée courte"
      ],
      "tags": [
        "singular"
      ]
    },
    {
      "form": "мракът",
      "raw_tags": [
        "Forme articulée longue"
      ],
      "tags": [
        "singular"
      ]
    },
    {
      "form": "мракове",
      "tags": [
        "plural",
        "base-form"
      ]
    },
    {
      "form": "мраковете",
      "raw_tags": [
        "Forme articulée"
      ],
      "tags": [
        "plural"
      ]
    },
    {
      "form": "мрака",
      "tags": [
        "plural",
        "numeral"
      ]
    }
  ],
  "lang": "Bulgare",
  "lang_code": "bg",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Obscurité."
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "мрак"
}