"hm²" meaning in All languages combined

{
  "categories": [
    {
      "kind": "other",
      "name": "Abkürzung (International)",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anagramm sortiert (International)",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "International",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Rückläufige Wörterliste (International)",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Siehe auch",
      "orig": "siehe auch",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "International",
  "lang_code": "mul",
  "pos": "abbrev",
  "senses": [
    {
      "examples": [
        {
          "text": "1 Hektar entspricht 100 hm²."
        }
      ],
      "glosses": [
        "Einheitssymbol für Quadrathektometer"
      ],
      "id": "de-hm²-mul-abbrev-rBD2PTUT",
      "sense_index": "1"
    }
  ],
  "tags": [
    "abbreviation"
  ],
  "word": "hm²"
}

{
  "categories": [
    "Abkürzung (International)",
    "Anagramm sortiert (International)",
    "International",
    "Rückläufige Wörterliste (International)",
    "siehe auch"
  ],
  "lang": "International",
  "lang_code": "mul",
  "pos": "abbrev",
  "senses": [
    {
      "examples": [
        {
          "text": "1 Hektar entspricht 100 hm²."
        }
      ],
      "glosses": [
        "Einheitssymbol für Quadrathektometer"
      ],
      "sense_index": "1"
    }
  ],
  "tags": [
    "abbreviation"
  ],
  "word": "hm²"
}