"'tas" meaning in Spanish

{
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "verb form"
      },
      "expansion": "'tas",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "estás"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish pronunciation spellings",
          "parents": [
            "Pronunciation spellings",
            "Terms by orthographic property",
            "Terms by lexical property"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Pronunciation spelling of estás."
      ],
      "id": "en-'tas-es-verb-wJBxlC-d",
      "links": [
        [
          "Pronunciation spelling",
          "pronunciation spelling"
        ],
        [
          "estás",
          "estás#Spanish"
        ]
      ],
      "synonyms": [
        {
          "word": "tas"
        }
      ],
      "tags": [
        "alt-of",
        "pronunciation-spelling"
      ]
    }
  ],
  "word": "'tas"
}

{
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "verb form"
      },
      "expansion": "'tas",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "estás"
        }
      ],
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Spanish entries with incorrect language header",
        "Spanish non-lemma forms",
        "Spanish pronunciation spellings",
        "Spanish verb forms"
      ],
      "glosses": [
        "Pronunciation spelling of estás."
      ],
      "links": [
        [
          "Pronunciation spelling",
          "pronunciation spelling"
        ],
        [
          "estás",
          "estás#Spanish"
        ]
      ],
      "tags": [
        "alt-of",
        "pronunciation-spelling"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "tas"
    }
  ],
  "word": "'tas"
}