"maître-chien" meaning in French

{
  "forms": [
    {
      "form": "maîtres-chiens",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "maîtresse-chien",
      "tags": [
        "feminine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "maîtres-chiens",
        "f": "maîtresse-chien"
      },
      "expansion": "maître-chien m (plural maîtres-chiens, feminine maîtresse-chien)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "fr",
          "name": "Dogs",
          "orig": "fr:Dogs",
          "parents": [
            "Canids",
            "Carnivores",
            "Mammals",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Law enforcement",
          "orig": "fr:Law enforcement",
          "parents": [
            "Crime prevention",
            "Emergency services",
            "Law",
            "Crime",
            "Public safety",
            "Justice",
            "Criminal law",
            "Society",
            "Public administration",
            "Security",
            "All topics",
            "Government",
            "Fundamental",
            "Politics"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Military",
          "orig": "fr:Military",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Occupations",
          "orig": "fr:Occupations",
          "parents": [
            "People",
            "Work",
            "Human",
            "Human activity",
            "All topics",
            "Human behaviour",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "dog handler"
      ],
      "id": "en-maître-chien-fr-noun-~phu2Mbl",
      "links": [
        [
          "dog handler",
          "dog handler"
        ]
      ],
      "synonyms": [
        {
          "english": "post-1990 spelling",
          "word": "maitre-chien"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/mɛ.tʁə.ʃjɛ̃/"
    },
    {
      "ipa": "/me.tʁə.ʃjɛ̃/"
    },
    {
      "audio": "LL-Q150 (fra)-Arthur Crbz-maître-chien.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/7a/LL-Q150_%28fra%29-Arthur_Crbz-ma%C3%AEtre-chien.wav/LL-Q150_%28fra%29-Arthur_Crbz-ma%C3%AEtre-chien.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/7a/LL-Q150_%28fra%29-Arthur_Crbz-ma%C3%AEtre-chien.wav/LL-Q150_%28fra%29-Arthur_Crbz-ma%C3%AEtre-chien.wav.ogg"
    }
  ],
  "word": "maître-chien"
}

{
  "forms": [
    {
      "form": "maîtres-chiens",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "maîtresse-chien",
      "tags": [
        "feminine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "maîtres-chiens",
        "f": "maîtresse-chien"
      },
      "expansion": "maître-chien m (plural maîtres-chiens, feminine maîtresse-chien)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French 3-syllable words",
        "French countable nouns",
        "French entries with incorrect language header",
        "French lemmas",
        "French masculine nouns",
        "French multiword terms",
        "French nouns",
        "French nouns with red links in their headword lines",
        "French terms with IPA pronunciation",
        "Pages with 1 entry",
        "Pages with entries",
        "fr:Dogs",
        "fr:Law enforcement",
        "fr:Military",
        "fr:Occupations"
      ],
      "glosses": [
        "dog handler"
      ],
      "links": [
        [
          "dog handler",
          "dog handler"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/mɛ.tʁə.ʃjɛ̃/"
    },
    {
      "ipa": "/me.tʁə.ʃjɛ̃/"
    },
    {
      "audio": "LL-Q150 (fra)-Arthur Crbz-maître-chien.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/7a/LL-Q150_%28fra%29-Arthur_Crbz-ma%C3%AEtre-chien.wav/LL-Q150_%28fra%29-Arthur_Crbz-ma%C3%AEtre-chien.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/7a/LL-Q150_%28fra%29-Arthur_Crbz-ma%C3%AEtre-chien.wav/LL-Q150_%28fra%29-Arthur_Crbz-ma%C3%AEtre-chien.wav.ogg"
    }
  ],
  "synonyms": [
    {
      "english": "post-1990 spelling",
      "word": "maitre-chien"
    }
  ],
  "word": "maître-chien"
}