"free-running" meaning in English

{
  "forms": [
    {
      "form": "freer running",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "freest running",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "freer running",
        "sup": "freest running"
      },
      "expansion": "free-running (comparative freer running, superlative freest running)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1941 May, “Notes and News: William Stroudley”, in Railway Magazine, page 234",
          "text": "As to any suggestion that Stroudley's engines were not free-running at high speed, this was of little moment with 60 m.p.h. laid down as the limit at that time.",
          "type": "quotation"
        },
        {
          "ref": "1961 November, Cecil J. Allen, “Locomotive Running Past and Present”, in Trains Illustrated, page 684",
          "text": "It is the Bulleid Pacifics of the Southern Region, which all observers of locomotive performance know to be among the freest running engines in the country.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Moving freely and smoothly."
      ],
      "id": "en-free-running-en-adj-rw~DuKrp",
      "links": [
        [
          "freely",
          "freely"
        ],
        [
          "smoothly",
          "smoothly"
        ]
      ],
      "raw_glosses": [
        "(of a mechanism) Moving freely and smoothly."
      ],
      "raw_tags": [
        "of a mechanism"
      ]
    }
  ],
  "word": "free-running"
}

{
  "forms": [
    {
      "form": "freer running",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "freest running",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "freer running",
        "sup": "freest running"
      },
      "expansion": "free-running (comparative freer running, superlative freest running)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1941 May, “Notes and News: William Stroudley”, in Railway Magazine, page 234",
          "text": "As to any suggestion that Stroudley's engines were not free-running at high speed, this was of little moment with 60 m.p.h. laid down as the limit at that time.",
          "type": "quotation"
        },
        {
          "ref": "1961 November, Cecil J. Allen, “Locomotive Running Past and Present”, in Trains Illustrated, page 684",
          "text": "It is the Bulleid Pacifics of the Southern Region, which all observers of locomotive performance know to be among the freest running engines in the country.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Moving freely and smoothly."
      ],
      "links": [
        [
          "freely",
          "freely"
        ],
        [
          "smoothly",
          "smoothly"
        ]
      ],
      "raw_glosses": [
        "(of a mechanism) Moving freely and smoothly."
      ],
      "raw_tags": [
        "of a mechanism"
      ]
    }
  ],
  "word": "free-running"
}