"q-gram" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "q",
        "3": "gram"
      },
      "expansion": "q + -gram",
      "name": "suffix"
    }
  ],
  "etymology_text": "q + -gram",
  "forms": [
    {
      "form": "q-grams",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "q-gram"
      },
      "expansion": "q-gram (plural q-grams)",
      "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 suffixed with -gram",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of n-gram: a substring of length q."
      ],
      "id": "en-q-gram-en-noun-PBhTwoPp",
      "links": [
        [
          "n-gram",
          "n-gram#English"
        ],
        [
          "substring",
          "substring"
        ]
      ],
      "synonyms": [
        {
          "extra": "a substring of length q",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "n-gram"
        }
      ]
    }
  ],
  "word": "q-gram"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "q",
        "3": "gram"
      },
      "expansion": "q + -gram",
      "name": "suffix"
    }
  ],
  "etymology_text": "q + -gram",
  "forms": [
    {
      "form": "q-grams",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "q-gram"
      },
      "expansion": "q-gram (plural q-grams)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms suffixed with -gram",
        "English words containing Q not followed by U"
      ],
      "glosses": [
        "Synonym of n-gram: a substring of length q."
      ],
      "links": [
        [
          "n-gram",
          "n-gram#English"
        ],
        [
          "substring",
          "substring"
        ]
      ],
      "synonyms": [
        {
          "extra": "a substring of length q",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "n-gram"
        }
      ]
    }
  ],
  "word": "q-gram"
}