"ni jota" meaning in Spanish

{
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "pronoun"
      },
      "expansion": "ni jota",
      "name": "head"
    }
  ],
  "hyphenation": [
    "ni"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish pronouns",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "They couldn't do anything at all here.",
          "text": "No podrían hacer ni jota acá.",
          "type": "example"
        },
        {
          "english": "You don't understand a single thing he says?",
          "text": "¿No entiendes ni jota de lo que habla?",
          "type": "example"
        }
      ],
      "glosses": [
        "nothing at all, not a jot"
      ],
      "id": "en-ni_jota-es-pron-bBoOO8lB",
      "links": [
        [
          "nothing",
          "nothing"
        ],
        [
          "at all",
          "at all"
        ],
        [
          "not a jot",
          "not a jot"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌni ˈxota/"
    },
    {
      "ipa": "[ˌni ˈxo.t̪a]"
    }
  ],
  "word": "ni jota"
}

{
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "pronoun"
      },
      "expansion": "ni jota",
      "name": "head"
    }
  ],
  "hyphenation": [
    "ni"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        "Spanish entries with incorrect language header",
        "Spanish lemmas",
        "Spanish multiword terms",
        "Spanish pronouns",
        "Spanish terms with IPA pronunciation",
        "Spanish terms with usage examples"
      ],
      "examples": [
        {
          "english": "They couldn't do anything at all here.",
          "text": "No podrían hacer ni jota acá.",
          "type": "example"
        },
        {
          "english": "You don't understand a single thing he says?",
          "text": "¿No entiendes ni jota de lo que habla?",
          "type": "example"
        }
      ],
      "glosses": [
        "nothing at all, not a jot"
      ],
      "links": [
        [
          "nothing",
          "nothing"
        ],
        [
          "at all",
          "at all"
        ],
        [
          "not a jot",
          "not a jot"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌni ˈxota/"
    },
    {
      "ipa": "[ˌni ˈxo.t̪a]"
    }
  ],
  "word": "ni jota"
}