"gain ground" meaning in Anglais

{
  "antonyms": [
    {
      "sense": "perdre du terrain",
      "word": "lose ground"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions verbales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de gain et de ground."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en anglais à traduire",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Henry Grabar, « The American Addiction to Speeding, How we became obsessed with driving fast, no matter the cost », Metropolis, 15 décembre 2021",
          "text": "It’s no surprise that speed limits are being introduced into cars in Europe first; the continent’s anti-speeding movement is gaining ground."
        }
      ],
      "glosses": [
        "Gagner du terrain."
      ],
      "id": "fr-gain_ground-en-verb-S-EbmPcy"
    }
  ],
  "word": "gain ground"
}

{
  "antonyms": [
    {
      "sense": "perdre du terrain",
      "word": "lose ground"
    }
  ],
  "categories": [
    "Compositions en anglais",
    "Locutions verbales en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "Composé de gain et de ground."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "senses": [
    {
      "categories": [
        "Exemples en anglais",
        "Exemples en anglais à traduire"
      ],
      "examples": [
        {
          "ref": "Henry Grabar, « The American Addiction to Speeding, How we became obsessed with driving fast, no matter the cost », Metropolis, 15 décembre 2021",
          "text": "It’s no surprise that speed limits are being introduced into cars in Europe first; the continent’s anti-speeding movement is gaining ground."
        }
      ],
      "glosses": [
        "Gagner du terrain."
      ]
    }
  ],
  "word": "gain ground"
}