"text-book" meaning in English

{
  "forms": [
    {
      "form": "text-books",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "text-book (plural text-books)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "textbook"
        }
      ],
      "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"
        }
      ],
      "examples": [
        {
          "ref": "1891, Charles Coppens, A Brief Text-book of Logic and Mental Philosophy:",
          "text": "I read the work and I consider it most useful for our colleges as a text-book, and of great advantage for those who have finished their studies, as well as for Catholics in general.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Obsolete form of textbook."
      ],
      "id": "en-text-book-en-noun-DeGpONw1",
      "links": [
        [
          "textbook",
          "textbook#English"
        ]
      ],
      "tags": [
        "alt-of",
        "obsolete"
      ]
    }
  ],
  "word": "text-book"
}

{
  "forms": [
    {
      "form": "text-books",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "text-book (plural text-books)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "textbook"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English obsolete forms",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1891, Charles Coppens, A Brief Text-book of Logic and Mental Philosophy:",
          "text": "I read the work and I consider it most useful for our colleges as a text-book, and of great advantage for those who have finished their studies, as well as for Catholics in general.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Obsolete form of textbook."
      ],
      "links": [
        [
          "textbook",
          "textbook#English"
        ]
      ],
      "tags": [
        "alt-of",
        "obsolete"
      ]
    }
  ],
  "word": "text-book"
}