"mission-critical" meaning in English

{
  "forms": [
    {
      "form": "more mission-critical",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most mission-critical",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mission-critical (comparative more mission-critical, superlative most mission-critical)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1996, Tom Clancy, Marine: A Guided Tour of a Marine Expeditionary Unit, page 189",
          "text": "The LCACs role makes good communications a mission-critical feature.",
          "type": "quotation"
        },
        {
          "ref": "2002, David Allen, Getting Things Done: The Art of Stress-Free Productivity, page 128",
          "text": "Let me remind you here that a less-than-sixty-second, fun-to-use general-reference filing system within arm's reach of where you sit is a mission-critical component of full implementation of this methodology.",
          "type": "quotation"
        },
        {
          "ref": "2011, Benjamin Patrick Conry, 31 Days Before Your CompTIA A+ Exams, page 13",
          "text": "Cooling is an often underappreciated but a mission-critical part of the computer system.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Of a process or part within a larger system, vital to the operations of the system as a whole."
      ],
      "id": "en-mission-critical-en-adj-k0HVKZ-O",
      "translations": [
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "vital to the operations of a system as a whole",
          "word": "verksamhetskritisk"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "vital to the operations of a system as a whole",
          "word": "affärskritisk"
        }
      ]
    }
  ],
  "word": "mission-critical"
}

{
  "forms": [
    {
      "form": "more mission-critical",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most mission-critical",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mission-critical (comparative more mission-critical, superlative most mission-critical)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1996, Tom Clancy, Marine: A Guided Tour of a Marine Expeditionary Unit, page 189",
          "text": "The LCACs role makes good communications a mission-critical feature.",
          "type": "quotation"
        },
        {
          "ref": "2002, David Allen, Getting Things Done: The Art of Stress-Free Productivity, page 128",
          "text": "Let me remind you here that a less-than-sixty-second, fun-to-use general-reference filing system within arm's reach of where you sit is a mission-critical component of full implementation of this methodology.",
          "type": "quotation"
        },
        {
          "ref": "2011, Benjamin Patrick Conry, 31 Days Before Your CompTIA A+ Exams, page 13",
          "text": "Cooling is an often underappreciated but a mission-critical part of the computer system.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Of a process or part within a larger system, vital to the operations of the system as a whole."
      ]
    }
  ],
  "translations": [
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "vital to the operations of a system as a whole",
      "word": "verksamhetskritisk"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "vital to the operations of a system as a whole",
      "word": "affärskritisk"
    }
  ],
  "word": "mission-critical"
}