"tranquilles" meaning in Français

{
  "anagrams": [
    {
      "word": "resquillant"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Formes d’adjectifs en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "tranquille",
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "adj",
  "pos_title": "Forme d’adjectif",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en français",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              81,
              92
            ]
          ],
          "ref": "Bulletin des engrais, 1963,nᵒ 456 à 475, page 190",
          "text": "Au plein de la chaleur, les bêtes « chôment » c’est-à-dire ruminent, assemblées, tranquilles, le front bas, chacune protégeant tête et museau contre le flanc de la voisine."
        }
      ],
      "form_of": [
        {
          "word": "tranquille"
        }
      ],
      "glosses": [
        "Pluriel de tranquille."
      ],
      "id": "fr-tranquilles-fr-adj-JYfhW14L"
    }
  ],
  "sounds": [
    {
      "ipa": "\\tʁɑ̃.kil\\"
    }
  ],
  "tags": [
    "feminine",
    "form-of",
    "masculine"
  ],
  "word": "tranquilles"
}

{
  "anagrams": [
    {
      "word": "resquillant"
    }
  ],
  "categories": [
    "Formes d’adjectifs en français",
    "français"
  ],
  "forms": [
    {
      "form": "tranquille",
      "tags": [
        "singular"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "adj",
  "pos_title": "Forme d’adjectif",
  "senses": [
    {
      "categories": [
        "Exemples en français"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              81,
              92
            ]
          ],
          "ref": "Bulletin des engrais, 1963,nᵒ 456 à 475, page 190",
          "text": "Au plein de la chaleur, les bêtes « chôment » c’est-à-dire ruminent, assemblées, tranquilles, le front bas, chacune protégeant tête et museau contre le flanc de la voisine."
        }
      ],
      "form_of": [
        {
          "word": "tranquille"
        }
      ],
      "glosses": [
        "Pluriel de tranquille."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\tʁɑ̃.kil\\"
    }
  ],
  "tags": [
    "feminine",
    "form-of",
    "masculine"
  ],
  "word": "tranquilles"
}