"AETR" meaning in English

{
  "head_templates": [
    {
      "args": {},
      "expansion": "AETR",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "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": "International law",
          "orig": "en:International law",
          "parents": [
            "Law",
            "Justice",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Road transport",
          "orig": "en:Road transport",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The European arrangement in regard to the work of driving personnel engaged in international traffic."
      ],
      "id": "en-AETR-en-name-v369FTM8",
      "links": [
        [
          "international law",
          "international law"
        ]
      ],
      "qualifier": "international law",
      "raw_glosses": [
        "(road transport, international law) The European arrangement in regard to the work of driving personnel engaged in international traffic."
      ],
      "topics": [
        "road",
        "transport"
      ]
    }
  ],
  "word": "AETR"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "AETR",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English proper nouns",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:International law",
        "en:Road transport"
      ],
      "glosses": [
        "The European arrangement in regard to the work of driving personnel engaged in international traffic."
      ],
      "links": [
        [
          "international law",
          "international law"
        ]
      ],
      "qualifier": "international law",
      "raw_glosses": [
        "(road transport, international law) The European arrangement in regard to the work of driving personnel engaged in international traffic."
      ],
      "topics": [
        "road",
        "transport"
      ]
    }
  ],
  "word": "AETR"
}