"-um" meaning in Turkish

{
  "head_templates": [
    {
      "args": {
        "1": "tr",
        "2": "suffix"
      },
      "expansion": "-um",
      "name": "head"
    }
  ],
  "lang": "Turkish",
  "lang_code": "tr",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "_dis": "59 41",
          "kind": "other",
          "name": "Turkish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "english": "school - my school",
          "text": "okul - okulum"
        },
        {
          "english": "way - my way",
          "text": "yol - yolum"
        }
      ],
      "glosses": [
        "First-person singular possessive suffix denoting singular possession in words ending in a consonant."
      ],
      "id": "en--um-tr-suffix-fOsmqMzj",
      "tags": [
        "morpheme"
      ]
    },
    {
      "examples": [
        {
          "english": "innocent - I am innocent",
          "text": "masum - masumum"
        }
      ],
      "glosses": [
        "Conjugation of the verb \"to be\" for first person singular simple present tense."
      ],
      "id": "en--um-tr-suffix-8Zge8BLn",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-um"
}

{
  "categories": [
    "Pages with 18 entries",
    "Pages with entries",
    "Turkish entries with incorrect language header",
    "Turkish lemmas",
    "Turkish suffixes"
  ],
  "head_templates": [
    {
      "args": {
        "1": "tr",
        "2": "suffix"
      },
      "expansion": "-um",
      "name": "head"
    }
  ],
  "lang": "Turkish",
  "lang_code": "tr",
  "pos": "suffix",
  "senses": [
    {
      "examples": [
        {
          "english": "school - my school",
          "text": "okul - okulum"
        },
        {
          "english": "way - my way",
          "text": "yol - yolum"
        }
      ],
      "glosses": [
        "First-person singular possessive suffix denoting singular possession in words ending in a consonant."
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "examples": [
        {
          "english": "innocent - I am innocent",
          "text": "masum - masumum"
        }
      ],
      "glosses": [
        "Conjugation of the verb \"to be\" for first person singular simple present tense."
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-um"
}