"-tu" meaning in Turkish

{
  "head_templates": [
    {
      "args": {
        "1": "tr",
        "2": "suffix form"
      },
      "expansion": "-tu",
      "name": "head"
    }
  ],
  "lang": "Turkish",
  "lang_code": "tr",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Turkish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Turkish links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "al- (“to take”) + -ın (“to take offense”) + -tı → alıntı (“quotation, citation”)",
          "type": "example"
        },
        {
          "text": "ak- (“to flow”) + -ın + -tı → akıntı (“flow, current, stream”)",
          "type": "example"
        },
        {
          "text": "çıt (“click or crack sound”) + -ır + -tı → çıtırtı (“clicking, cracking”)",
          "type": "example"
        },
        {
          "text": "mor (“purple”) + -ar (“to turn purple”) + -tı → morartı (“bruise, a purplish spot”)",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "word": "-tı after the vowels O"
        },
        {
          "word": "U"
        }
      ],
      "glosses": [
        "Form of -tı after the vowels O / U."
      ],
      "id": "en--tu-tr-suffix-4fYwLC78",
      "links": [
        [
          "-tı",
          "-tı#Turkish"
        ]
      ],
      "tags": [
        "form-of",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/tu/"
    }
  ],
  "word": "-tu"
}

{
  "head_templates": [
    {
      "args": {
        "1": "tr",
        "2": "suffix form"
      },
      "expansion": "-tu",
      "name": "head"
    }
  ],
  "lang": "Turkish",
  "lang_code": "tr",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Turkish entries with incorrect language header",
        "Turkish links with redundant alt parameters",
        "Turkish non-lemma forms",
        "Turkish suffix forms",
        "Turkish terms with IPA pronunciation"
      ],
      "examples": [
        {
          "text": "al- (“to take”) + -ın (“to take offense”) + -tı → alıntı (“quotation, citation”)",
          "type": "example"
        },
        {
          "text": "ak- (“to flow”) + -ın + -tı → akıntı (“flow, current, stream”)",
          "type": "example"
        },
        {
          "text": "çıt (“click or crack sound”) + -ır + -tı → çıtırtı (“clicking, cracking”)",
          "type": "example"
        },
        {
          "text": "mor (“purple”) + -ar (“to turn purple”) + -tı → morartı (“bruise, a purplish spot”)",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "word": "-tı after the vowels O"
        },
        {
          "word": "U"
        }
      ],
      "glosses": [
        "Form of -tı after the vowels O / U."
      ],
      "links": [
        [
          "-tı",
          "-tı#Turkish"
        ]
      ],
      "tags": [
        "form-of",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/tu/"
    }
  ],
  "word": "-tu"
}