"Stw" meaning in German

{
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "noun",
        "g": "n"
      },
      "expansion": "Stw n",
      "name": "head"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Stellwerk"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "German 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": "de",
          "name": "Rail transportation",
          "orig": "de:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of Stellwerk."
      ],
      "id": "en-Stw-de-noun-ayqkAJh-",
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "Stellwerk",
          "Stellwerk#German"
        ]
      ],
      "raw_glosses": [
        "(rail transport) Abbreviation of Stellwerk."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "neuter"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "Stw"
}

{
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "noun",
        "g": "n"
      },
      "expansion": "Stw n",
      "name": "head"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Stellwerk"
        }
      ],
      "categories": [
        "German abbreviations",
        "German entries with incorrect language header",
        "German lemmas",
        "German neuter nouns",
        "German nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "de:Rail transportation"
      ],
      "glosses": [
        "Abbreviation of Stellwerk."
      ],
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "Stellwerk",
          "Stellwerk#German"
        ]
      ],
      "raw_glosses": [
        "(rail transport) Abbreviation of Stellwerk."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "neuter"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "Stw"
}