"百選" meaning in Japanese

{
  "forms": [
    {
      "form": "百選",
      "ruby": [
        [
          "百",
          "ひゃく"
        ],
        [
          "選",
          "せん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "hyakusen",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ひゃくせん"
      },
      "expansion": "百(ひゃく)選(せん) • (hyakusen)",
      "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 redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "top one hundred"
      ],
      "id": "en-百選-ja-noun-o2wQE~V6"
    }
  ],
  "sounds": [
    {
      "ipa": "[ça̠kɯ̟ᵝsẽ̞ɴ]"
    }
  ],
  "word": "百選"
}

{
  "forms": [
    {
      "form": "百選",
      "ruby": [
        [
          "百",
          "ひゃく"
        ],
        [
          "選",
          "せん"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "hyakusen",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ひゃくせん"
      },
      "expansion": "百(ひゃく)選(せん) • (hyakusen)",
      "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 first grade kanji",
        "Japanese terms spelled with fourth grade kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with two Han script characters"
      ],
      "glosses": [
        "top one hundred"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ça̠kɯ̟ᵝsẽ̞ɴ]"
    }
  ],
  "word": "百選"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "百選"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "百選",
  "trace": ""
}