"suggestion box" meaning in English

{
  "forms": [
    {
      "form": "suggestion boxes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "suggestion box (plural suggestion boxes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English 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 script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Containers",
          "orig": "en:Containers",
          "parents": [
            "Tools",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A receptacle with an opening into which people may place slips of paper containing suggestions for improvement, or for similar feedback"
      ],
      "hypernyms": [
        {
          "word": "box"
        }
      ],
      "id": "en-suggestion_box-en-noun-8bw6kcht",
      "links": [
        [
          "receptacle",
          "receptacle"
        ],
        [
          "opening",
          "opening"
        ],
        [
          "improvement",
          "improvement"
        ],
        [
          "feedback",
          "feedback"
        ]
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "receptacle",
          "word": "aloitelaatikko"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "receptacle",
          "tags": [
            "feminine"
          ],
          "word": "boîte à suggestions"
        },
        {
          "alt": "とうしょばこ",
          "code": "ja",
          "lang": "Japanese",
          "roman": "tōshobako",
          "sense": "receptacle",
          "word": "投書箱"
        },
        {
          "code": "ms",
          "lang": "Malay",
          "sense": "receptacle",
          "word": "kotak cadangan"
        }
      ]
    }
  ],
  "word": "suggestion box"
}

{
  "forms": [
    {
      "form": "suggestion boxes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "suggestion box (plural suggestion boxes)",
      "name": "en-noun"
    }
  ],
  "hypernyms": [
    {
      "word": "box"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant script codes",
        "en:Containers"
      ],
      "glosses": [
        "A receptacle with an opening into which people may place slips of paper containing suggestions for improvement, or for similar feedback"
      ],
      "links": [
        [
          "receptacle",
          "receptacle"
        ],
        [
          "opening",
          "opening"
        ],
        [
          "improvement",
          "improvement"
        ],
        [
          "feedback",
          "feedback"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "receptacle",
      "word": "aloitelaatikko"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "receptacle",
      "tags": [
        "feminine"
      ],
      "word": "boîte à suggestions"
    },
    {
      "alt": "とうしょばこ",
      "code": "ja",
      "lang": "Japanese",
      "roman": "tōshobako",
      "sense": "receptacle",
      "word": "投書箱"
    },
    {
      "code": "ms",
      "lang": "Malay",
      "sense": "receptacle",
      "word": "kotak cadangan"
    }
  ],
  "word": "suggestion box"
}