"0T" meaning in All languages combined

{
  "etymology_templates": [
    {
      "args": {
        "1": "4"
      },
      "expansion": "⁴",
      "name": "sup"
    },
    {
      "args": {
        "1": "1"
      },
      "expansion": "¹",
      "name": "sup"
    },
    {
      "args": {
        "1": "yue",
        "2": "0",
        "3": "T",
        "tr1": "ling⁴",
        "tr2": "ti¹"
      },
      "expansion": "0 (ling⁴) + T (ti¹)",
      "name": "compound"
    },
    {
      "args": {
        "1": "4"
      },
      "expansion": "⁴",
      "name": "sup"
    },
    {
      "args": {
        "1": "yue",
        "2": "en",
        "3": "tea"
      },
      "expansion": "English tea",
      "name": "der"
    }
  ],
  "etymology_text": "0 (ling⁴) + T (ti¹), near-homophone of 檸／柠 (ning⁴, “lemon”) + English tea.",
  "head_templates": [
    {
      "args": {
        "1": "zh",
        "2": "noun"
      },
      "expansion": "0T",
      "name": "head"
    }
  ],
  "lang": "Chinese",
  "lang_code": "zh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Chinese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "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": "Hong Kong Cantonese",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "zh",
          "name": "Beverages",
          "orig": "zh:Beverages",
          "parents": [
            "Drinking",
            "Food and drink",
            "Liquids",
            "Human behaviour",
            "All topics",
            "Matter",
            "Human",
            "Fundamental",
            "Chemistry",
            "Nature",
            "Sciences"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "zh",
          "name": "Chinese restaurants",
          "orig": "zh:Chinese restaurants",
          "parents": [
            "China",
            "Restaurants",
            "Asia",
            "Businesses",
            "Food and drink",
            "Earth",
            "Eurasia",
            "Business",
            "All topics",
            "Nature",
            "Economics",
            "Society",
            "Fundamental",
            "Social sciences",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "lemon tea"
      ],
      "id": "en-0T-zh-noun-jh3uacf9",
      "links": [
        [
          "cha chaan teng",
          "cha chaan teng"
        ],
        [
          "lemon tea",
          "lemon tea"
        ]
      ],
      "raw_glosses": [
        "(Hong Kong Cantonese, cha chaan teng jargon) lemon tea"
      ],
      "synonyms": [
        {
          "word": "檸茶"
        }
      ],
      "tags": [
        "Cantonese",
        "Hong-Kong"
      ]
    }
  ],
  "word": "0T"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "4"
      },
      "expansion": "⁴",
      "name": "sup"
    },
    {
      "args": {
        "1": "1"
      },
      "expansion": "¹",
      "name": "sup"
    },
    {
      "args": {
        "1": "yue",
        "2": "0",
        "3": "T",
        "tr1": "ling⁴",
        "tr2": "ti¹"
      },
      "expansion": "0 (ling⁴) + T (ti¹)",
      "name": "compound"
    },
    {
      "args": {
        "1": "4"
      },
      "expansion": "⁴",
      "name": "sup"
    },
    {
      "args": {
        "1": "yue",
        "2": "en",
        "3": "tea"
      },
      "expansion": "English tea",
      "name": "der"
    }
  ],
  "etymology_text": "0 (ling⁴) + T (ti¹), near-homophone of 檸／柠 (ning⁴, “lemon”) + English tea.",
  "head_templates": [
    {
      "args": {
        "1": "zh",
        "2": "noun"
      },
      "expansion": "0T",
      "name": "head"
    }
  ],
  "lang": "Chinese",
  "lang_code": "zh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Cantonese compound terms",
        "Cantonese nouns",
        "Cantonese terms derived from English",
        "Chinese entries with incorrect language header",
        "Chinese lemmas",
        "Chinese nouns",
        "Chinese terms with IPA pronunciation",
        "Chinese terms written in foreign scripts",
        "Hong Kong Cantonese",
        "Requests for pronunciation in Chinese entries",
        "zh:Beverages",
        "zh:Chinese restaurants"
      ],
      "glosses": [
        "lemon tea"
      ],
      "links": [
        [
          "cha chaan teng",
          "cha chaan teng"
        ],
        [
          "lemon tea",
          "lemon tea"
        ]
      ],
      "raw_glosses": [
        "(Hong Kong Cantonese, cha chaan teng jargon) lemon tea"
      ],
      "synonyms": [
        {
          "word": "檸茶"
        }
      ],
      "tags": [
        "Cantonese",
        "Hong-Kong"
      ]
    }
  ],
  "word": "0T"
}

{
  "called_from": "form_descriptions/1831",
  "msg": "unrecognized sense qualifier: Hong Kong Cantonese, cha chaan teng jargon",
  "path": [
    "0T"
  ],
  "section": "Chinese",
  "subsection": "noun",
  "title": "0T",
  "trace": ""
}

{
  "called_from": "form_descriptions/1831",
  "msg": "unrecognized sense qualifier: Hong Kong Cantonese, cha chaan teng jargon",
  "path": [
    "0T"
  ],
  "section": "Chinese",
  "subsection": "noun",
  "title": "0T",
  "trace": ""
}