"कठिनाइयो" meaning in Hindi

{
  "forms": [
    {
      "form": "kaṭhināiyo",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "कठिनाइयो • (kaṭhināiyo)",
      "name": "hi-noun form"
    }
  ],
  "lang": "Hindi",
  "lang_code": "hi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Hindi entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "kaṭhināī",
          "word": "कठिनाई"
        }
      ],
      "glosses": [
        "vocative plural of कठिनाई (kaṭhināī)"
      ],
      "id": "en-कठिनाइयो-hi-noun-r4ACaykL",
      "links": [
        [
          "कठिनाई",
          "कठिनाई#Hindi"
        ]
      ],
      "tags": [
        "form-of",
        "plural",
        "vocative"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kə.ʈʰɪ.nɑː.ɪ.joː/",
      "tags": [
        "Delhi"
      ]
    },
    {
      "ipa": "[kɐ.ʈʰɪ.näː.i.joː]",
      "tags": [
        "Delhi"
      ]
    }
  ],
  "word": "कठिनाइयो"
}

{
  "forms": [
    {
      "form": "kaṭhināiyo",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "कठिनाइयो • (kaṭhināiyo)",
      "name": "hi-noun form"
    }
  ],
  "lang": "Hindi",
  "lang_code": "hi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Hindi entries with incorrect language header",
        "Hindi non-lemma forms",
        "Hindi noun forms",
        "Hindi terms with IPA pronunciation"
      ],
      "form_of": [
        {
          "extra": "kaṭhināī",
          "word": "कठिनाई"
        }
      ],
      "glosses": [
        "vocative plural of कठिनाई (kaṭhināī)"
      ],
      "links": [
        [
          "कठिनाई",
          "कठिनाई#Hindi"
        ]
      ],
      "tags": [
        "form-of",
        "plural",
        "vocative"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kə.ʈʰɪ.nɑː.ɪ.joː/",
      "tags": [
        "Delhi"
      ]
    },
    {
      "ipa": "[kɐ.ʈʰɪ.näː.i.joː]",
      "tags": [
        "Delhi"
      ]
    }
  ],
  "word": "कठिनाइयो"
}