"chao" meaning in Ido

{
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "fr",
        "3": "tchao"
      },
      "expansion": "French tchao",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "de",
        "3": "tschau"
      },
      "expansion": "German tschau",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "it",
        "3": "ciao"
      },
      "expansion": "Italian ciao",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "es",
        "3": "chau"
      },
      "expansion": "Spanish chau",
      "name": "bor"
    },
    {
      "args": {
        "1": "",
        "2": "tchao",
        "3": "tschau",
        "4": "ciao",
        "5": "",
        "6": "chau",
        "nodot": "1"
      },
      "expansion": "Borrowed from French tchao, German tschau, Italian ciao, Spanish chau",
      "name": "io-bor"
    },
    {
      "args": {
        "1": "but only in the sense of \"goodbye\""
      },
      "expansion": "(but only in the sense of \"goodbye\")",
      "name": "gloss"
    }
  ],
  "etymology_text": "Borrowed from French tchao, German tschau, Italian ciao, Spanish chau (but only in the sense of \"goodbye\").",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "interjection"
      },
      "expansion": "chao",
      "name": "head"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "intj",
  "senses": [
    {
      "antonyms": [
        {
          "word": "saluto"
        },
        {
          "word": "hola"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Ido entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Ido neologisms",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "goodbye"
      ],
      "id": "en-chao-io-intj-guNaY866",
      "links": [
        [
          "goodbye",
          "goodbye#English"
        ]
      ],
      "raw_glosses": [
        "(neologism, often informal) goodbye"
      ],
      "synonyms": [
        {
          "word": "adio"
        },
        {
          "word": "til rivido"
        },
        {
          "word": "til"
        },
        {
          "word": "chau"
        }
      ],
      "tags": [
        "informal",
        "neologism",
        "often"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈt͡ʃao/"
    }
  ],
  "word": "chao"
}

{
  "categories": [
    "vi:Condiments"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "io",
        "2": "fr",
        "3": "tchao"
      },
      "expansion": "French tchao",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "de",
        "3": "tschau"
      },
      "expansion": "German tschau",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "it",
        "3": "ciao"
      },
      "expansion": "Italian ciao",
      "name": "bor"
    },
    {
      "args": {
        "1": "io",
        "2": "es",
        "3": "chau"
      },
      "expansion": "Spanish chau",
      "name": "bor"
    },
    {
      "args": {
        "1": "",
        "2": "tchao",
        "3": "tschau",
        "4": "ciao",
        "5": "",
        "6": "chau",
        "nodot": "1"
      },
      "expansion": "Borrowed from French tchao, German tschau, Italian ciao, Spanish chau",
      "name": "io-bor"
    },
    {
      "args": {
        "1": "but only in the sense of \"goodbye\""
      },
      "expansion": "(but only in the sense of \"goodbye\")",
      "name": "gloss"
    }
  ],
  "etymology_text": "Borrowed from French tchao, German tschau, Italian ciao, Spanish chau (but only in the sense of \"goodbye\").",
  "head_templates": [
    {
      "args": {
        "1": "io",
        "2": "interjection"
      },
      "expansion": "chao",
      "name": "head"
    }
  ],
  "lang": "Ido",
  "lang_code": "io",
  "pos": "intj",
  "senses": [
    {
      "antonyms": [
        {
          "word": "saluto"
        },
        {
          "word": "hola"
        }
      ],
      "categories": [
        "Ido entries with incorrect language header",
        "Ido informal terms",
        "Ido interjections",
        "Ido lemmas",
        "Ido neologisms",
        "Ido terms borrowed from French",
        "Ido terms borrowed from German",
        "Ido terms borrowed from Italian",
        "Ido terms borrowed from Spanish",
        "Ido terms derived from French",
        "Ido terms derived from German",
        "Ido terms derived from Italian",
        "Ido terms derived from Spanish",
        "Ido terms with IPA pronunciation"
      ],
      "glosses": [
        "goodbye"
      ],
      "links": [
        [
          "goodbye",
          "goodbye#English"
        ]
      ],
      "raw_glosses": [
        "(neologism, often informal) goodbye"
      ],
      "synonyms": [
        {
          "word": "adio"
        },
        {
          "word": "til rivido"
        },
        {
          "word": "til"
        }
      ],
      "tags": [
        "informal",
        "neologism",
        "often"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈt͡ʃao/"
    }
  ],
  "synonyms": [
    {
      "word": "chau"
    }
  ],
  "word": "chao"
}