"on the back of" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase",
        "head": ""
      },
      "expansion": "on the back of",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "on the back of",
      "name": "en-PP"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        {
          "_dis": "90 10",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "90 10",
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
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          "source": "w+disamb"
        },
        {
          "_dis": "91 9",
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "2011 June 28, Piers Newbery, “Wimbledon 2011: Sabine Lisicki beats Marion Bartoli”, in BBC Sport",
          "text": "Lisicki will rise from her current ranking of 62 to at least 35 in the world on the back of her efforts at the All England Club, but she will have serious designs on a first Grand Slam title after overcoming the 2007 runner-up.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "As a result of; after; subsequent to."
      ],
      "id": "en-on_the_back_of-en-prep_phrase-h1Bvxyj3",
      "links": [
        [
          "As a result",
          "as a result"
        ],
        [
          "subsequent",
          "subsequent"
        ]
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "text": "The country was built on the back of slave labor.",
          "type": "example"
        }
      ],
      "glosses": [
        "By the effort of; by drawing an unfair advantage from."
      ],
      "id": "en-on_the_back_of-en-prep_phrase-8AOHSy~J",
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "effort",
          "effort"
        ],
        [
          "draw",
          "draw"
        ],
        [
          "unfair",
          "unfair"
        ],
        [
          "advantage",
          "advantage"
        ]
      ],
      "raw_glosses": [
        "(derogatory) By the effort of; by drawing an unfair advantage from."
      ],
      "tags": [
        "derogatory"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-on the back of.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/9c/En-au-on_the_back_of.ogg/En-au-on_the_back_of.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/9/9c/En-au-on_the_back_of.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "on the back of"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English entries with language name categories using raw markup",
    "English idioms",
    "English lemmas",
    "English multiword terms",
    "English prepositional phrases",
    "English terms with audio links",
    "English terms with non-redundant non-automated sortkeys"
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase",
        "head": ""
      },
      "expansion": "on the back of",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "on the back of",
      "name": "en-PP"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2011 June 28, Piers Newbery, “Wimbledon 2011: Sabine Lisicki beats Marion Bartoli”, in BBC Sport",
          "text": "Lisicki will rise from her current ranking of 62 to at least 35 in the world on the back of her efforts at the All England Club, but she will have serious designs on a first Grand Slam title after overcoming the 2007 runner-up.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "As a result of; after; subsequent to."
      ],
      "links": [
        [
          "As a result",
          "as a result"
        ],
        [
          "subsequent",
          "subsequent"
        ]
      ]
    },
    {
      "categories": [
        "English derogatory terms",
        "English terms with usage examples"
      ],
      "examples": [
        {
          "text": "The country was built on the back of slave labor.",
          "type": "example"
        }
      ],
      "glosses": [
        "By the effort of; by drawing an unfair advantage from."
      ],
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "effort",
          "effort"
        ],
        [
          "draw",
          "draw"
        ],
        [
          "unfair",
          "unfair"
        ],
        [
          "advantage",
          "advantage"
        ]
      ],
      "raw_glosses": [
        "(derogatory) By the effort of; by drawing an unfair advantage from."
      ],
      "tags": [
        "derogatory"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-on the back of.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/9c/En-au-on_the_back_of.ogg/En-au-on_the_back_of.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/9/9c/En-au-on_the_back_of.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "on the back of"
}