"posterboard" meaning in English

{
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    {
      "args": {
        "1": "en",
        "2": "poster",
        "3": "board"
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      "expansion": "poster + board",
      "name": "compound"
    }
  ],
  "etymology_text": "From poster + board.",
  "forms": [
    {
      "form": "posterboards",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
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      "expansion": "posterboard (countable and uncountable, plural posterboards)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "71 2 27",
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          "parents": [
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      ],
      "examples": [
        {
          "text": "I used a piece of posterboard for my project.",
          "type": "example"
        }
      ],
      "glosses": [
        "Cardboard material suitable for making posters."
      ],
      "id": "en-posterboard-en-noun-4KZdZZHU",
      "links": [
        [
          "Cardboard",
          "cardboard"
        ]
      ],
      "raw_glosses": [
        "(uncountable) Cardboard material suitable for making posters."
      ],
      "tags": [
        "uncountable"
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "text": "I used the posterboard for my project.",
          "type": "example"
        }
      ],
      "glosses": [
        "A piece of such material."
      ],
      "id": "en-posterboard-en-noun-mixj7WVC",
      "tags": [
        "countable",
        "uncountable"
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "text": "They sent me a nice posterboard on the new product.",
          "type": "example"
        }
      ],
      "glosses": [
        "A flyer printed on stiff cardboard, approximately 8.5 by 11 inches, mailed flat."
      ],
      "id": "en-posterboard-en-noun-IyU4DmRx",
      "raw_glosses": [
        "(direct marketing) A flyer printed on stiff cardboard, approximately 8.5 by 11 inches, mailed flat."
      ],
      "tags": [
        "countable",
        "direct",
        "uncountable"
      ],
      "topics": [
        "business",
        "marketing"
      ]
    }
  ],
  "word": "posterboard"
}

{
  "categories": [
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    "English nouns",
    "English uncountable nouns",
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    "Pages with entries"
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      "expansion": "poster + board",
      "name": "compound"
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  ],
  "etymology_text": "From poster + board.",
  "forms": [
    {
      "form": "posterboards",
      "tags": [
        "plural"
      ]
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  ],
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      ],
      "examples": [
        {
          "text": "I used a piece of posterboard for my project.",
          "type": "example"
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      ],
      "glosses": [
        "Cardboard material suitable for making posters."
      ],
      "links": [
        [
          "Cardboard",
          "cardboard"
        ]
      ],
      "raw_glosses": [
        "(uncountable) Cardboard material suitable for making posters."
      ],
      "tags": [
        "uncountable"
      ]
    },
    {
      "categories": [
        "English terms with usage examples"
      ],
      "examples": [
        {
          "text": "I used the posterboard for my project.",
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      "glosses": [
        "A piece of such material."
      ],
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        "uncountable"
      ]
    },
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      "categories": [
        "English terms with usage examples"
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        {
          "text": "They sent me a nice posterboard on the new product.",
          "type": "example"
        }
      ],
      "glosses": [
        "A flyer printed on stiff cardboard, approximately 8.5 by 11 inches, mailed flat."
      ],
      "raw_glosses": [
        "(direct marketing) A flyer printed on stiff cardboard, approximately 8.5 by 11 inches, mailed flat."
      ],
      "tags": [
        "countable",
        "direct",
        "uncountable"
      ],
      "topics": [
        "business",
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  "word": "posterboard"
}