"le long de" meaning in French

{
  "head_templates": [
    {
      "args": {},
      "expansion": "le long de",
      "name": "fr-prep"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prep",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "French prepositions",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Go along the river.",
          "text": "Allez le long du fleuve.",
          "type": "example"
        },
        {
          "english": "As soon as I landed on their banks, I was bogged down. Drowned, called back into the core of my childhood. Held back, disoriented after these days of deep langour along the banks of the Nam Hou, I slept.",
          "ref": "2015, Catherine Gérard, Sur la courbe de nos rondeurs terrestres",
          "text": "À peine déposée sur leurs berges, je m’enlisais. Noyée, rappelée dans le trognon de mes enfances. Retenue, désorientée après ces jours de langueur profonde le long des rives de la Nam Hou, je sombrais.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "along, alongside"
      ],
      "id": "en-le_long_de-fr-prep-ESleojrZ",
      "links": [
        [
          "along",
          "along"
        ],
        [
          "alongside",
          "alongside"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/lə lɔ̃ də/"
    }
  ],
  "word": "le long de"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "le long de",
      "name": "fr-prep"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prep",
  "senses": [
    {
      "categories": [
        "French entries with incorrect language header",
        "French lemmas",
        "French multiword terms",
        "French prepositions",
        "French terms with IPA pronunciation",
        "French terms with quotations",
        "French terms with usage examples",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "english": "Go along the river.",
          "text": "Allez le long du fleuve.",
          "type": "example"
        },
        {
          "english": "As soon as I landed on their banks, I was bogged down. Drowned, called back into the core of my childhood. Held back, disoriented after these days of deep langour along the banks of the Nam Hou, I slept.",
          "ref": "2015, Catherine Gérard, Sur la courbe de nos rondeurs terrestres",
          "text": "À peine déposée sur leurs berges, je m’enlisais. Noyée, rappelée dans le trognon de mes enfances. Retenue, désorientée après ces jours de langueur profonde le long des rives de la Nam Hou, je sombrais.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "along, alongside"
      ],
      "links": [
        [
          "along",
          "along"
        ],
        [
          "alongside",
          "alongside"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/lə lɔ̃ də/"
    }
  ],
  "word": "le long de"
}