"TCH" meaning in French

{
  "head_templates": [
    {
      "args": {},
      "expansion": "TCH ?",
      "name": "fr-proper noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "Czechia",
          "word": "Tchéquie"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Sports",
          "orig": "fr:Sports",
          "parents": [
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of Tchéquie (“Czechia”)."
      ],
      "id": "en-TCH-fr-name-ea-s5o5F",
      "links": [
        [
          "sports",
          "sports"
        ],
        [
          "Tchéquie",
          "Tchéquie#French"
        ],
        [
          "Czechia",
          "Czechia#English"
        ]
      ],
      "raw_glosses": [
        "(sports) Abbreviation of Tchéquie (“Czechia”)."
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ],
      "topics": [
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "word": "TCH"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "TCH ?",
      "name": "fr-proper noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "Czechia",
          "word": "Tchéquie"
        }
      ],
      "categories": [
        "French abbreviations",
        "French entries with incorrect language header",
        "French lemmas",
        "French proper nouns",
        "Pages with 3 entries",
        "Pages with entries",
        "Requests for gender in French entries",
        "fr:Sports"
      ],
      "glosses": [
        "Abbreviation of Tchéquie (“Czechia”)."
      ],
      "links": [
        [
          "sports",
          "sports"
        ],
        [
          "Tchéquie",
          "Tchéquie#French"
        ],
        [
          "Czechia",
          "Czechia#English"
        ]
      ],
      "raw_glosses": [
        "(sports) Abbreviation of Tchéquie (“Czechia”)."
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ],
      "topics": [
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "word": "TCH"
}