"妹さん" meaning in Japanese

{
  "forms": [
    {
      "form": "妹さん",
      "ruby": [
        [
          "妹",
          "いもうと"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "imōtosan",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "いもうとさん"
      },
      "expansion": "妹(いもうと)さん • (imōtosan)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 1 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Female family members",
          "orig": "ja:Female family members",
          "parents": [
            "Family members",
            "Female people",
            "Family",
            "Female",
            "People",
            "Gender",
            "Human",
            "Biology",
            "Psychology",
            "Sociology",
            "All topics",
            "Sciences",
            "Social sciences",
            "Fundamental",
            "Society"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "someone else's younger sister"
      ],
      "id": "en-妹さん-ja-noun-IBBvxxHD",
      "links": [
        [
          "younger sister",
          "younger sister"
        ]
      ]
    }
  ],
  "word": "妹さん"
}

{
  "forms": [
    {
      "form": "妹さん",
      "ruby": [
        [
          "妹",
          "いもうと"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "imōtosan",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "いもうとさん"
      },
      "expansion": "妹(いもうと)さん • (imōtosan)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms with 1 kanji",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries",
        "ja:Female family members"
      ],
      "glosses": [
        "someone else's younger sister"
      ],
      "links": [
        [
          "younger sister",
          "younger sister"
        ]
      ]
    }
  ],
  "word": "妹さん"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "妹さん"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "妹さん",
  "trace": ""
}