"tou" meaning in Portuguese

{
  "etymology_templates": [
    {
      "args": {
        "1": "pt",
        "2": "estou"
      },
      "expansion": "estou",
      "name": "m"
    },
    {
      "args": {
        "1": "pt",
        "2": "estar"
      },
      "expansion": "estar",
      "name": "m"
    }
  ],
  "etymology_text": "Shortening of estou, first-person singular present indicative of estar.",
  "head_templates": [
    {
      "args": {
        "1": "pt",
        "2": "verb form"
      },
      "expansion": "tou",
      "name": "head"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "estou"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Portuguese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Portuguese eye dialect",
          "parents": [
            "Eye dialect",
            "Nonstandard forms",
            "Terms by orthographic property",
            "Nonstandard terms",
            "Terms by lexical property",
            "Terms by usage"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Eye dialect spelling of estou."
      ],
      "id": "en-tou-pt-verb--0feK0NK",
      "links": [
        [
          "estou",
          "estou#Portuguese"
        ]
      ],
      "tags": [
        "alt-of",
        "pronunciation-spelling"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ow"
    }
  ],
  "word": "tou"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "pt",
        "2": "estou"
      },
      "expansion": "estou",
      "name": "m"
    },
    {
      "args": {
        "1": "pt",
        "2": "estar"
      },
      "expansion": "estar",
      "name": "m"
    }
  ],
  "etymology_text": "Shortening of estou, first-person singular present indicative of estar.",
  "head_templates": [
    {
      "args": {
        "1": "pt",
        "2": "verb form"
      },
      "expansion": "tou",
      "name": "head"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "estou"
        }
      ],
      "categories": [
        "Portuguese entries with incorrect language header",
        "Portuguese eye dialect",
        "Portuguese non-lemma forms",
        "Portuguese verb forms",
        "Rhymes:Portuguese/ow",
        "Rhymes:Portuguese/ow/1 syllable"
      ],
      "glosses": [
        "Eye dialect spelling of estou."
      ],
      "links": [
        [
          "estou",
          "estou#Portuguese"
        ]
      ],
      "tags": [
        "alt-of",
        "pronunciation-spelling"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ow"
    }
  ],
  "word": "tou"
}