"dấu lưỡi câu" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "dấu",
        "3": "lưỡi câu",
        "t1": "mark",
        "t2": "fishhook"
      },
      "expansion": "dấu (“mark”) + lưỡi câu (“fishhook”)",
      "name": "compound"
    }
  ],
  "etymology_text": "dấu (“mark”) + lưỡi câu (“fishhook”), from the diacritical mark's resemblance to a fishhook.\nThe Middle Vietnamese diacritic was derived from the Portuguese til (“tilde”) and has since fallen out of use.",
  "forms": [
    {
      "form": "cái",
      "tags": [
        "classifier"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "dấu lưỡi câu",
      "name": "head"
    },
    {
      "args": {
        "cls": "cái"
      },
      "expansion": "(classifier cái) dấu lưỡi câu",
      "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": "Vietnamese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese nouns classified by cái",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "vi",
          "name": "Typography",
          "orig": "vi:Typography",
          "parents": [
            "Printing",
            "Writing",
            "Industries",
            "Human behaviour",
            "Language",
            "Business",
            "Human",
            "Communication",
            "Economics",
            "Society",
            "All topics",
            "Social sciences",
            "Fundamental",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "apex (diacritic in Middle Vietnamese that indicates /ŋ͡m/)"
      ],
      "id": "en-dấu_lưỡi_câu-vi-noun-z~Ae1FG-",
      "links": [
        [
          "typography",
          "typography"
        ],
        [
          "apex",
          "apex#English"
        ]
      ],
      "raw_glosses": [
        "(typography, historical) apex (diacritic in Middle Vietnamese that indicates /ŋ͡m/)"
      ],
      "synonyms": [
        {
          "sense": "diacritic in Middle Vietnamese",
          "word": "dấu sóng"
        }
      ],
      "tags": [
        "historical"
      ],
      "topics": [
        "media",
        "publishing",
        "typography"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[zəw˧˦ lɨəj˦ˀ˥ kəw˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[jəw˨˩˦ lɨj˧˨ kəw˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[jəw˦˥ lɨj˨˩˦ kəw˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "dấu lưỡi câu"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "dấu",
        "3": "lưỡi câu",
        "t1": "mark",
        "t2": "fishhook"
      },
      "expansion": "dấu (“mark”) + lưỡi câu (“fishhook”)",
      "name": "compound"
    }
  ],
  "etymology_text": "dấu (“mark”) + lưỡi câu (“fishhook”), from the diacritical mark's resemblance to a fishhook.\nThe Middle Vietnamese diacritic was derived from the Portuguese til (“tilde”) and has since fallen out of use.",
  "forms": [
    {
      "form": "cái",
      "tags": [
        "classifier"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "dấu lưỡi câu",
      "name": "head"
    },
    {
      "args": {
        "cls": "cái"
      },
      "expansion": "(classifier cái) dấu lưỡi câu",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Vietnamese compound terms",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese nouns",
        "Vietnamese nouns classified by cái",
        "Vietnamese terms with IPA pronunciation",
        "Vietnamese terms with historical senses",
        "vi:Typography"
      ],
      "glosses": [
        "apex (diacritic in Middle Vietnamese that indicates /ŋ͡m/)"
      ],
      "links": [
        [
          "typography",
          "typography"
        ],
        [
          "apex",
          "apex#English"
        ]
      ],
      "raw_glosses": [
        "(typography, historical) apex (diacritic in Middle Vietnamese that indicates /ŋ͡m/)"
      ],
      "tags": [
        "historical"
      ],
      "topics": [
        "media",
        "publishing",
        "typography"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[zəw˧˦ lɨəj˦ˀ˥ kəw˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[jəw˨˩˦ lɨj˧˨ kəw˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[jəw˦˥ lɨj˨˩˦ kəw˧˧]",
      "note": "Saigon"
    }
  ],
  "synonyms": [
    {
      "sense": "diacritic in Middle Vietnamese",
      "word": "dấu sóng"
    }
  ],
  "word": "dấu lưỡi câu"
}