"backstair" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "back",
        "3": "stair"
      },
      "expansion": "back + stair",
      "name": "compound"
    }
  ],
  "etymology_text": "back + stair",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "backstair (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "61 39",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "clandestine, secret or furtive"
      ],
      "id": "en-backstair-en-adj-Pn5GG~NX",
      "links": [
        [
          "clandestine",
          "clandestine"
        ],
        [
          "secret",
          "secret"
        ],
        [
          "furtive",
          "furtive"
        ]
      ],
      "synonyms": [
        {
          "word": "backstairs"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "backstair"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "back",
        "3": "stair"
      },
      "expansion": "back + stair",
      "name": "compound"
    }
  ],
  "etymology_text": "back + stair",
  "forms": [
    {
      "form": "backstairs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "backstair (plural backstairs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "The backstairs (stairs at the rear of a building)."
      ],
      "id": "en-backstair-en-noun-VfN91AEJ",
      "links": [
        [
          "backstairs",
          "backstairs"
        ]
      ]
    }
  ],
  "word": "backstair"
}

{
  "categories": [
    "English adjectives",
    "English compound terms",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English uncomparable adjectives"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "back",
        "3": "stair"
      },
      "expansion": "back + stair",
      "name": "compound"
    }
  ],
  "etymology_text": "back + stair",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "backstair (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "glosses": [
        "clandestine, secret or furtive"
      ],
      "links": [
        [
          "clandestine",
          "clandestine"
        ],
        [
          "secret",
          "secret"
        ],
        [
          "furtive",
          "furtive"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "backstairs"
    }
  ],
  "word": "backstair"
}

{
  "categories": [
    "English adjectives",
    "English compound terms",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English uncomparable adjectives"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "back",
        "3": "stair"
      },
      "expansion": "back + stair",
      "name": "compound"
    }
  ],
  "etymology_text": "back + stair",
  "forms": [
    {
      "form": "backstairs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "backstair (plural backstairs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "The backstairs (stairs at the rear of a building)."
      ],
      "links": [
        [
          "backstairs",
          "backstairs"
        ]
      ]
    }
  ],
  "word": "backstair"
}