"bookselling" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "book",
        "3": "selling"
      },
      "expansion": "book + selling",
      "name": "compound"
    }
  ],
  "etymology_text": "From book + selling.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "bookselling (uncountable)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Books",
          "orig": "en:Books",
          "parents": [
            "Literature",
            "Mass media",
            "Culture",
            "Entertainment",
            "Writing",
            "Media",
            "Society",
            "Human behaviour",
            "Language",
            "Communication",
            "All topics",
            "Human",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Businesses",
          "orig": "en:Businesses",
          "parents": [
            "Business",
            "Economics",
            "Society",
            "Social sciences",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The sale of books."
      ],
      "id": "en-bookselling-en-noun-X6PSLnB4",
      "links": [
        [
          "sale",
          "sale"
        ],
        [
          "books",
          "book#Noun"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "rare"
          ],
          "word": "bibliopolism"
        },
        {
          "tags": [
            "archaic"
          ],
          "word": "bibliopolery"
        },
        {
          "word": "bibliopoly"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "bookselling"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "book",
        "3": "selling"
      },
      "expansion": "book + selling",
      "name": "compound"
    }
  ],
  "etymology_text": "From book + selling.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "bookselling (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound nouns",
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Books",
        "en:Businesses"
      ],
      "glosses": [
        "The sale of books."
      ],
      "links": [
        [
          "sale",
          "sale"
        ],
        [
          "books",
          "book#Noun"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "rare"
          ],
          "word": "bibliopolism"
        },
        {
          "tags": [
            "archaic"
          ],
          "word": "bibliopolery"
        },
        {
          "word": "bibliopoly"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "bookselling"
}