"green wall" meaning in English

{
  "forms": [
    {
      "form": "green walls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "green wall (plural green walls)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Walls and fences",
          "orig": "en:Walls and fences",
          "parents": [
            "Buildings and structures",
            "Architecture",
            "Applied sciences",
            "Art",
            "Sciences",
            "Culture",
            "All topics",
            "Society",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A wall covered by greenery."
      ],
      "id": "en-green_wall-en-noun-QO26fsEC",
      "links": [
        [
          "wall",
          "wall"
        ],
        [
          "greenery",
          "greenery"
        ]
      ],
      "synonyms": [
        {
          "word": "living wall"
        },
        {
          "word": "vertical garden"
        }
      ],
      "wikipedia": [
        "green wall"
      ]
    }
  ],
  "word": "green wall"
}

{
  "forms": [
    {
      "form": "green walls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "green wall (plural green walls)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Walls and fences"
      ],
      "glosses": [
        "A wall covered by greenery."
      ],
      "links": [
        [
          "wall",
          "wall"
        ],
        [
          "greenery",
          "greenery"
        ]
      ],
      "wikipedia": [
        "green wall"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "living wall"
    },
    {
      "word": "vertical garden"
    }
  ],
  "word": "green wall"
}