"ménage à quatre" meaning in English

{
  "coordinate_terms": [
    {
      "_dis1": "51 49",
      "sense": "both senses",
      "word": "ménage à trois"
    },
    {
      "_dis1": "51 49",
      "sense": "both senses",
      "word": "ménage à moi"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "ménage à trois"
      },
      "expansion": "French ménage à trois",
      "name": "der"
    }
  ],
  "etymology_text": "From ménage à trois (“household whereby three people live as lovers; sexual act involving three people”), from French ménage à trois. The number trois (“three”) is replaced by quatre (“four”).",
  "forms": [
    {
      "form": "ménages à quatre",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ménages à quatre",
        "head": "ménage à quatre"
      },
      "expansion": "ménage à quatre (plural ménages à quatre)",
      "name": "en-noun"
    }
  ],
  "hypernyms": [
    {
      "_dis1": "51 49",
      "sense": "both senses",
      "word": "ménage"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A household or relationship whereby four people live together as lovers."
      ],
      "id": "en-ménage_à_quatre-en-noun-e2Kv00nB",
      "links": [
        [
          "household",
          "household"
        ],
        [
          "relationship",
          "relationship"
        ],
        [
          "lover",
          "lover"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "27 73",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w+disamb"
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          "_dis": "20 80",
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          "_dis": "25 75",
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        {
          "_dis": "11 89",
          "kind": "topical",
          "langcode": "en",
          "name": "Sex",
          "orig": "en:Sex",
          "parents": [
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            "Reproduction",
            "Fundamental",
            "Life",
            "Nature"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A sexual act involving four people; a foursome."
      ],
      "id": "en-ménage_à_quatre-en-noun-3ftq3Aqe",
      "links": [
        [
          "foursome",
          "foursome"
        ]
      ]
    }
  ],
  "word": "ménage à quatre"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms borrowed from French",
    "English terms derived from French",
    "English terms spelled with À",
    "English terms spelled with É",
    "English terms spelled with ◌̀",
    "English terms spelled with ◌́",
    "Pages with 1 entry",
    "Pages with entries",
    "en:Sex"
  ],
  "coordinate_terms": [
    {
      "sense": "both senses",
      "word": "ménage à trois"
    },
    {
      "sense": "both senses",
      "word": "ménage à moi"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fr",
        "3": "ménage à trois"
      },
      "expansion": "French ménage à trois",
      "name": "der"
    }
  ],
  "etymology_text": "From ménage à trois (“household whereby three people live as lovers; sexual act involving three people”), from French ménage à trois. The number trois (“three”) is replaced by quatre (“four”).",
  "forms": [
    {
      "form": "ménages à quatre",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ménages à quatre",
        "head": "ménage à quatre"
      },
      "expansion": "ménage à quatre (plural ménages à quatre)",
      "name": "en-noun"
    }
  ],
  "hypernyms": [
    {
      "sense": "both senses",
      "word": "ménage"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A household or relationship whereby four people live together as lovers."
      ],
      "links": [
        [
          "household",
          "household"
        ],
        [
          "relationship",
          "relationship"
        ],
        [
          "lover",
          "lover"
        ]
      ]
    },
    {
      "glosses": [
        "A sexual act involving four people; a foursome."
      ],
      "links": [
        [
          "foursome",
          "foursome"
        ]
      ]
    }
  ],
  "word": "ménage à quatre"
}