"וואָס איז דאָס" meaning in Yiddish

{
  "forms": [
    {
      "form": "vos iz dos?",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "yi",
        "2": "phrase",
        "head": "וואָס איז דאָס?"
      },
      "expansion": "וואָס איז דאָס? • (vos iz dos?)",
      "name": "head"
    }
  ],
  "lang": "Yiddish",
  "lang_code": "yi",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Yiddish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Yiddish phrasebook",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "what is that?"
      ],
      "id": "en-וואָס_איז_דאָס-yi-phrase-oE0n8MAw",
      "links": [
        [
          "what is that",
          "what is that"
        ]
      ]
    }
  ],
  "word": "וואָס איז דאָס"
}

{
  "forms": [
    {
      "form": "vos iz dos?",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "yi",
        "2": "phrase",
        "head": "וואָס איז דאָס?"
      },
      "expansion": "וואָס איז דאָס? • (vos iz dos?)",
      "name": "head"
    }
  ],
  "lang": "Yiddish",
  "lang_code": "yi",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Yiddish entries with incorrect language header",
        "Yiddish lemmas",
        "Yiddish multiword terms",
        "Yiddish phrasebook",
        "Yiddish phrases"
      ],
      "glosses": [
        "what is that?"
      ],
      "links": [
        [
          "what is that",
          "what is that"
        ]
      ]
    }
  ],
  "word": "וואָס איז דאָס"
}