"niitit" meaning in Finnish

{
  "head_templates": [
    {
      "args": {
        "1": "fi",
        "2": "noun form"
      },
      "expansion": "niitit",
      "name": "head"
    }
  ],
  "lang": "Finnish",
  "lang_code": "fi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Finnish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "_dis": "61 18 21",
          "kind": "other",
          "name": "Northern Sami entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "word": "niitti"
        }
      ],
      "glosses": [
        "nominative plural of niitti"
      ],
      "id": "en-niitit-fi-noun-QfG2q2Jk",
      "links": [
        [
          "niitti",
          "niitti#Finnish"
        ]
      ],
      "tags": [
        "form-of",
        "nominative",
        "plural"
      ]
    }
  ],
  "word": "niitit"
}

{
  "categories": [
    "Northern Sami 2-syllable words",
    "Northern Sami entries with incorrect language header",
    "Northern Sami even i-stem verbs",
    "Northern Sami even verbs",
    "Northern Sami lemmas",
    "Northern Sami terms with IPA pronunciation",
    "Northern Sami verbs"
  ],
  "head_templates": [
    {
      "args": {
        "1": "fi",
        "2": "noun form"
      },
      "expansion": "niitit",
      "name": "head"
    }
  ],
  "lang": "Finnish",
  "lang_code": "fi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Finnish entries with incorrect language header",
        "Finnish non-lemma forms",
        "Finnish noun forms"
      ],
      "form_of": [
        {
          "word": "niitti"
        }
      ],
      "glosses": [
        "nominative plural of niitti"
      ],
      "links": [
        [
          "niitti",
          "niitti#Finnish"
        ]
      ],
      "tags": [
        "form-of",
        "nominative",
        "plural"
      ]
    }
  ],
  "word": "niitit"
}