"memory box" meaning in English

{
  "forms": [
    {
      "form": "memory boxes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "memory box (plural memory 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": "topical",
          "langcode": "en",
          "name": "Containers",
          "orig": "en:Containers",
          "parents": [
            "Tools",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2006, F. David Martin, Facing Death: Theme and Variations, page 43",
          "text": "Watch the elderly, even the escapists, as they nurse nostalgia: the wonder as they open memory boxes or old letters or family albums […]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A box containing items that serve as reminders, used for example in therapy for dementia, or as a memorial to a deceased infant."
      ],
      "id": "en-memory_box-en-noun-qE6AmxTV",
      "links": [
        [
          "reminder",
          "reminder"
        ],
        [
          "dementia",
          "dementia"
        ],
        [
          "memorial",
          "memorial"
        ]
      ],
      "related": [
        {
          "word": "time capsule"
        }
      ],
      "wikipedia": [
        "memory box"
      ]
    }
  ],
  "word": "memory box"
}

{
  "forms": [
    {
      "form": "memory boxes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "memory box (plural memory boxes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "time capsule"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Quotation templates to be cleaned",
        "en:Containers"
      ],
      "examples": [
        {
          "ref": "2006, F. David Martin, Facing Death: Theme and Variations, page 43",
          "text": "Watch the elderly, even the escapists, as they nurse nostalgia: the wonder as they open memory boxes or old letters or family albums […]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A box containing items that serve as reminders, used for example in therapy for dementia, or as a memorial to a deceased infant."
      ],
      "links": [
        [
          "reminder",
          "reminder"
        ],
        [
          "dementia",
          "dementia"
        ],
        [
          "memorial",
          "memorial"
        ]
      ],
      "wikipedia": [
        "memory box"
      ]
    }
  ],
  "word": "memory box"
}