"125" meaning in English

{
  "etymology_text": "From their maximum speed of 125 mph.",
  "forms": [
    {
      "form": "125s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "125 (plural 125s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Hindu-Arabic script",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "High-speed rail",
          "orig": "en:High-speed rail",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1999 June 16, Hoppy, “Re: HST from Paddington”, in uk.railway (Usenet):",
          "text": "How much rail horsepower does a 125 have? Well I don't have the actual TE curve on me here (it's at home) but I can approximate.",
          "type": "quote"
        },
        {
          "ref": "2003 December 1, Sean Marshall, “Re: Voyager/Meridian differences”, in uk.railway (Usenet):",
          "text": "Most of the cheap tickets are valid on both 125s and Turbos - indeed some are ONLY available on 125s (eg First Plus London Day Out).",
          "type": "quote"
        },
        {
          "ref": "2010 January 6, McKevvy, “Re: Could you safely lie between the rails of an HSL?”, in uk.railway (Usenet):",
          "text": "When I was an apprentice many years ago, the 125 used to come through Markinch station in Fife at 1.27pm every weekday.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A high-speed train (HST) powered by two British Rail Class 43s, one at each end."
      ],
      "id": "en-125-en-noun-gStYj~Vo",
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "HST",
          "HST"
        ]
      ],
      "raw_glosses": [
        "(UK, rail transport) A high-speed train (HST) powered by two British Rail Class 43s, one at each end."
      ],
      "tags": [
        "UK"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌwʌn.tuːˈfaɪv/"
    }
  ],
  "word": "125"
}

{
  "etymology_text": "From their maximum speed of 125 mph.",
  "forms": [
    {
      "form": "125s",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "125 (plural 125s)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "British English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms spelled with numbers",
        "English terms with quotations",
        "English words without vowels",
        "Hindu-Arabic script",
        "Pages with 1 entry",
        "Pages with entries",
        "en:High-speed rail",
        "en:Rail transportation"
      ],
      "examples": [
        {
          "ref": "1999 June 16, Hoppy, “Re: HST from Paddington”, in uk.railway (Usenet):",
          "text": "How much rail horsepower does a 125 have? Well I don't have the actual TE curve on me here (it's at home) but I can approximate.",
          "type": "quote"
        },
        {
          "ref": "2003 December 1, Sean Marshall, “Re: Voyager/Meridian differences”, in uk.railway (Usenet):",
          "text": "Most of the cheap tickets are valid on both 125s and Turbos - indeed some are ONLY available on 125s (eg First Plus London Day Out).",
          "type": "quote"
        },
        {
          "ref": "2010 January 6, McKevvy, “Re: Could you safely lie between the rails of an HSL?”, in uk.railway (Usenet):",
          "text": "When I was an apprentice many years ago, the 125 used to come through Markinch station in Fife at 1.27pm every weekday.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A high-speed train (HST) powered by two British Rail Class 43s, one at each end."
      ],
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "HST",
          "HST"
        ]
      ],
      "raw_glosses": [
        "(UK, rail transport) A high-speed train (HST) powered by two British Rail Class 43s, one at each end."
      ],
      "tags": [
        "UK"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌwʌn.tuːˈfaɪv/"
    }
  ],
  "word": "125"
}