"tickler file" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "tickler",
        "3": "file"
      },
      "expansion": "tickler + file",
      "name": "compound"
    }
  ],
  "etymology_text": "From tickler + file.",
  "forms": [
    {
      "form": "tickler files",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "tickler file (plural tickler files)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Containers",
          "orig": "en:Containers",
          "parents": [
            "Tools",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A collection of folders in which documents are filed according to the future date on which each will need action."
      ],
      "id": "en-tickler_file-en-noun-jMHbr82Z",
      "links": [
        [
          "document",
          "document"
        ]
      ],
      "synonyms": [
        {
          "sense": "collection of folders",
          "word": "43 folder system"
        }
      ],
      "wikipedia": [
        "tickler file"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/tɪkəlɚ faɪl/",
      "tags": [
        "US"
      ]
    },
    {
      "rhymes": "-aɪl"
    }
  ],
  "word": "tickler file"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "tickler",
        "3": "file"
      },
      "expansion": "tickler + file",
      "name": "compound"
    }
  ],
  "etymology_text": "From tickler + file.",
  "forms": [
    {
      "form": "tickler files",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "tickler file (plural tickler files)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "Rhymes:English/aɪl",
        "Rhymes:English/aɪl/3 syllables",
        "en:Containers"
      ],
      "glosses": [
        "A collection of folders in which documents are filed according to the future date on which each will need action."
      ],
      "links": [
        [
          "document",
          "document"
        ]
      ],
      "wikipedia": [
        "tickler file"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/tɪkəlɚ faɪl/",
      "tags": [
        "US"
      ]
    },
    {
      "rhymes": "-aɪl"
    }
  ],
  "synonyms": [
    {
      "sense": "collection of folders",
      "word": "43 folder system"
    }
  ],
  "word": "tickler file"
}