"flight level" meaning in English

{
  "forms": [
    {
      "form": "flight levels",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "flight level (plural flight levels)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "Any of several internationally agreed standard altitudes that are based on atmospheric pressure rather than on true height"
      ],
      "id": "en-flight_level-en-noun-6gbGlmoe",
      "links": [
        [
          "standard",
          "standard"
        ],
        [
          "altitude",
          "altitude"
        ],
        [
          "atmospheric",
          "atmospheric"
        ],
        [
          "pressure",
          "pressure"
        ],
        [
          "height",
          "height"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "Aviation",
          "orig": "en:Aviation",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "22 78",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "29 71",
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "13 87",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "24 76",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "27 73",
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "derived": [
        {
          "_dis1": "0 100",
          "word": "FL"
        }
      ],
      "glosses": [
        "a pressure altitude measured in terms of hundreds of feet above sea level (ie. flight level 120 (FL120) is 12,000 ft. ASL)"
      ],
      "id": "en-flight_level-en-noun-V5zSJZ6U",
      "links": [
        [
          "aviation",
          "aviation"
        ],
        [
          "pressure altitude",
          "pressure altitude"
        ],
        [
          "feet",
          "feet"
        ],
        [
          "above sea level",
          "above sea level"
        ]
      ],
      "raw_glosses": [
        "(aviation) a pressure altitude measured in terms of hundreds of feet above sea level (ie. flight level 120 (FL120) is 12,000 ft. ASL)"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ],
      "translations": [
        {
          "_dis1": "38 62",
          "code": "fi",
          "lang": "Finnish",
          "lang_code": "fi",
          "sense": "standard altitude",
          "word": "lentopinta"
        }
      ]
    }
  ],
  "word": "flight level"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Entries with translation boxes",
    "Pages with 1 entry",
    "Pages with entries",
    "Terms with Finnish translations"
  ],
  "derived": [
    {
      "word": "FL"
    }
  ],
  "forms": [
    {
      "form": "flight levels",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "flight level (plural flight levels)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "Any of several internationally agreed standard altitudes that are based on atmospheric pressure rather than on true height"
      ],
      "links": [
        [
          "standard",
          "standard"
        ],
        [
          "altitude",
          "altitude"
        ],
        [
          "atmospheric",
          "atmospheric"
        ],
        [
          "pressure",
          "pressure"
        ],
        [
          "height",
          "height"
        ]
      ]
    },
    {
      "categories": [
        "en:Aviation"
      ],
      "glosses": [
        "a pressure altitude measured in terms of hundreds of feet above sea level (ie. flight level 120 (FL120) is 12,000 ft. ASL)"
      ],
      "links": [
        [
          "aviation",
          "aviation"
        ],
        [
          "pressure altitude",
          "pressure altitude"
        ],
        [
          "feet",
          "feet"
        ],
        [
          "above sea level",
          "above sea level"
        ]
      ],
      "raw_glosses": [
        "(aviation) a pressure altitude measured in terms of hundreds of feet above sea level (ie. flight level 120 (FL120) is 12,000 ft. ASL)"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "lang_code": "fi",
      "sense": "standard altitude",
      "word": "lentopinta"
    }
  ],
  "word": "flight level"
}