"chau" meaning in Galician

{
  "etymology_templates": [
    {
      "args": {
        "1": "gl",
        "2": "it",
        "3": "ciao"
      },
      "expansion": "Italian ciao",
      "name": "bor"
    },
    {
      "args": {
        "1": "gl",
        "2": "vec",
        "3": "s-ciao",
        "4": "",
        "5": "slave"
      },
      "expansion": "Venetian s-ciao (“slave”)",
      "name": "der"
    }
  ],
  "etymology_text": "Borrowed from Italian ciao, from Venetian s-ciao (“slave”).",
  "head_templates": [
    {
      "args": {
        "1": "gl",
        "2": "interjection"
      },
      "expansion": "chau",
      "name": "head"
    }
  ],
  "lang": "Galician",
  "lang_code": "gl",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Galician entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "gl",
          "name": "Greetings",
          "orig": "gl:Greetings",
          "parents": [
            "Social acts",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "goodbye"
      ],
      "id": "en-chau-gl-intj-guNaY866",
      "links": [
        [
          "goodbye",
          "goodbye"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "formal"
          ],
          "word": "adeus"
        },
        {
          "word": "abur"
        },
        {
          "tags": [
            "informal"
          ],
          "word": "aburiño"
        },
        {
          "word": "deica logo"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈt͡ʃaw/"
    }
  ],
  "word": "chau"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "gl",
        "2": "it",
        "3": "ciao"
      },
      "expansion": "Italian ciao",
      "name": "bor"
    },
    {
      "args": {
        "1": "gl",
        "2": "vec",
        "3": "s-ciao",
        "4": "",
        "5": "slave"
      },
      "expansion": "Venetian s-ciao (“slave”)",
      "name": "der"
    }
  ],
  "etymology_text": "Borrowed from Italian ciao, from Venetian s-ciao (“slave”).",
  "head_templates": [
    {
      "args": {
        "1": "gl",
        "2": "interjection"
      },
      "expansion": "chau",
      "name": "head"
    }
  ],
  "lang": "Galician",
  "lang_code": "gl",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "Galician entries with incorrect language header",
        "Galician interjections",
        "Galician lemmas",
        "Galician terms borrowed from Italian",
        "Galician terms derived from Italian",
        "Galician terms derived from Venetian",
        "Galician terms with IPA pronunciation",
        "gl:Greetings"
      ],
      "glosses": [
        "goodbye"
      ],
      "links": [
        [
          "goodbye",
          "goodbye"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈt͡ʃaw/"
    }
  ],
  "synonyms": [
    {
      "tags": [
        "formal"
      ],
      "word": "adeus"
    },
    {
      "word": "abur"
    },
    {
      "tags": [
        "informal"
      ],
      "word": "aburiño"
    },
    {
      "word": "deica logo"
    }
  ],
  "word": "chau"
}