"biu" meaning in Mandarin

{
  "head_templates": [
    {
      "args": {
        "1": "cmn",
        "2": "interjection"
      },
      "expansion": "biu",
      "name": "head"
    }
  ],
  "lang": "Mandarin",
  "lang_code": "cmn",
  "pos": "intj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "biù"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Chinese terms written in foreign scripts",
          "parents": [
            "Terms written in foreign scripts",
            "Terms by orthographic property",
            "Terms by lexical property"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Mandarin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of biù"
      ],
      "id": "en-biu-cmn-intj-9yCHcFvw",
      "links": [
        [
          "biù",
          "biù#Mandarin"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "biu"
}

{
  "head_templates": [
    {
      "args": {
        "1": "cmn",
        "2": "interjection"
      },
      "expansion": "biu",
      "name": "head"
    }
  ],
  "lang": "Mandarin",
  "lang_code": "cmn",
  "pos": "intj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "biù"
        }
      ],
      "categories": [
        "Chinese terms written in foreign scripts",
        "Mandarin entries with incorrect language header",
        "Mandarin interjections",
        "Mandarin lemmas"
      ],
      "glosses": [
        "Alternative form of biù"
      ],
      "links": [
        [
          "biù",
          "biù#Mandarin"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "biu"
}