"slack space" meaning in All languages combined

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      "expansion": "slack space (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
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          "langcode": "en",
          "name": "Computing",
          "orig": "en:Computing",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Unused space in an allocation unit containing a file smaller than the allocation unit itself."
      ],
      "id": "en-slack_space-en-noun-Yex87Doq",
      "links": [
        [
          "computing",
          "computing#Noun"
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        [
          "allocation unit",
          "allocation unit"
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      "raw_glosses": [
        "(computing) Unused space in an allocation unit containing a file smaller than the allocation unit itself."
      ],
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        "uncountable"
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        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
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  "word": "slack space"
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      "expansion": "slack space (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Computing"
      ],
      "glosses": [
        "Unused space in an allocation unit containing a file smaller than the allocation unit itself."
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          "computing",
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          "allocation unit",
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        "(computing) Unused space in an allocation unit containing a file smaller than the allocation unit itself."
      ],
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        "computing",
        "engineering",
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  "word": "slack space"
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