"non-word" meaning in English

{
  "antonyms": [
    {
      "word": "word"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "non",
        "3": "word"
      },
      "expansion": "non- + word",
      "name": "prefix"
    }
  ],
  "etymology_text": "non- + word",
  "forms": [
    {
      "form": "non-words",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "non-word (plural non-words)",
      "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": "English terms prefixed with non-",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1986, Daniel G. Marowski, Contemporary Literary Criticism, page 382",
          "text": "[…] trashola prose features regular dollops of sub-literate laziness (including non-words like \"arousement\" and \"assertation\").",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Any sequence of sounds or letters which is not considered to be a word, whether through an accidental gap (for example, phextapher-styphren) or through a systematic gap (for example, fssstpklyitnbkdv)."
      ],
      "hyponyms": [
        {
          "word": "pseudoword"
        }
      ],
      "id": "en-non-word-en-noun-hBtcB5oj",
      "links": [
        [
          "sound",
          "sound"
        ],
        [
          "letter",
          "letter"
        ],
        [
          "word",
          "word"
        ],
        [
          "accidental gap",
          "accidental gap#English"
        ]
      ],
      "related": [
        {
          "word": "nonce word"
        }
      ],
      "synonyms": [
        {
          "word": "nonword"
        }
      ],
      "translations": [
        {
          "code": "da",
          "lang": "Danish",
          "sense": "non-word",
          "tags": [
            "neuter"
          ],
          "word": "nonord"
        }
      ]
    }
  ],
  "word": "non-word"
}

{
  "antonyms": [
    {
      "word": "word"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "non",
        "3": "word"
      },
      "expansion": "non- + word",
      "name": "prefix"
    }
  ],
  "etymology_text": "non- + word",
  "forms": [
    {
      "form": "non-words",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "non-word (plural non-words)",
      "name": "en-noun"
    }
  ],
  "hyponyms": [
    {
      "word": "pseudoword"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "nonce word"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms prefixed with non-",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1986, Daniel G. Marowski, Contemporary Literary Criticism, page 382",
          "text": "[…] trashola prose features regular dollops of sub-literate laziness (including non-words like \"arousement\" and \"assertation\").",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Any sequence of sounds or letters which is not considered to be a word, whether through an accidental gap (for example, phextapher-styphren) or through a systematic gap (for example, fssstpklyitnbkdv)."
      ],
      "links": [
        [
          "sound",
          "sound"
        ],
        [
          "letter",
          "letter"
        ],
        [
          "word",
          "word"
        ],
        [
          "accidental gap",
          "accidental gap#English"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "nonword"
    }
  ],
  "translations": [
    {
      "code": "da",
      "lang": "Danish",
      "sense": "non-word",
      "tags": [
        "neuter"
      ],
      "word": "nonord"
    }
  ],
  "word": "non-word"
}