"châu thổ" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "洲",
        "2": "river islet",
        "3": "土",
        "4": "soil"
      },
      "expansion": "Sino-Vietnamese word from 洲土, composed of 洲 (“river islet”) and 土 (“soil”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 洲土, composed of 洲 (“river islet”) and 土 (“soil”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "châu thổ",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "châu thổ",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sino-Vietnamese words",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "vi",
          "name": "Geology",
          "orig": "vi:Geology",
          "parents": [
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a river delta"
      ],
      "id": "en-châu_thổ-vi-noun-AdhvGB0R",
      "links": [
        [
          "geology",
          "geology"
        ],
        [
          "river",
          "river"
        ],
        [
          "delta",
          "delta"
        ]
      ],
      "raw_glosses": [
        "(geology) a river delta"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕəw˧˧ tʰo˧˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[t͡ɕəw˧˧ tʰow˧˨]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[cəw˧˧ tʰow˨˩˦]",
      "note": "Saigon"
    }
  ],
  "word": "châu thổ"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "洲",
        "2": "river islet",
        "3": "土",
        "4": "soil"
      },
      "expansion": "Sino-Vietnamese word from 洲土, composed of 洲 (“river islet”) and 土 (“soil”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 洲土, composed of 洲 (“river islet”) and 土 (“soil”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "châu thổ",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "châu thổ",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Vietnamese words",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese nouns",
        "Vietnamese terms with IPA pronunciation",
        "vi:Geology"
      ],
      "glosses": [
        "a river delta"
      ],
      "links": [
        [
          "geology",
          "geology"
        ],
        [
          "river",
          "river"
        ],
        [
          "delta",
          "delta"
        ]
      ],
      "raw_glosses": [
        "(geology) a river delta"
      ],
      "topics": [
        "geography",
        "geology",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕəw˧˧ tʰo˧˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[t͡ɕəw˧˧ tʰow˧˨]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[cəw˧˧ tʰow˨˩˦]",
      "note": "Saigon"
    }
  ],
  "word": "châu thổ"
}