"posterist" meaning in English

{
  "etymology_templates": [
    {
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        "1": "en",
        "2": "poster",
        "3": "ist"
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      "expansion": "poster + -ist",
      "name": "suffix"
    }
  ],
  "etymology_text": "From poster + -ist.",
  "forms": [
    {
      "form": "posterists",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "posterist (plural posterists)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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          "parents": [],
          "source": "w"
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          "source": "w"
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      "examples": [
        {
          "ref": "2015, Alan Schaefer, Joe Nick Patoski, Nels Jacobson, Homegrown: Austin Music Posters 1967 to 1982, page 17:",
          "text": "The posterists of Austin chronicled the changing social landscape and graphically redefined Texas for the rest of the country and the world […]",
          "type": "quote"
        }
      ],
      "glosses": [
        "A person who designs posters."
      ],
      "id": "en-posterist-en-noun-SYOD3~A7",
      "links": [
        [
          "design",
          "design"
        ],
        [
          "poster",
          "poster"
        ]
      ]
    }
  ],
  "word": "posterist"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "poster",
        "3": "ist"
      },
      "expansion": "poster + -ist",
      "name": "suffix"
    }
  ],
  "etymology_text": "From poster + -ist.",
  "forms": [
    {
      "form": "posterists",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "posterist (plural posterists)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "English lemmas",
        "English nouns",
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        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2015, Alan Schaefer, Joe Nick Patoski, Nels Jacobson, Homegrown: Austin Music Posters 1967 to 1982, page 17:",
          "text": "The posterists of Austin chronicled the changing social landscape and graphically redefined Texas for the rest of the country and the world […]",
          "type": "quote"
        }
      ],
      "glosses": [
        "A person who designs posters."
      ],
      "links": [
        [
          "design",
          "design"
        ],
        [
          "poster",
          "poster"
        ]
      ]
    }
  ],
  "word": "posterist"
}