"일단" meaning in Korean

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "Sino-Korean"
      },
      "expansion": "Sino-Korean",
      "name": "l"
    },
    {
      "args": {
        "1": "ko",
        "2": "一旦"
      },
      "expansion": "一旦",
      "name": "m"
    },
    {
      "args": {
        "1": "ko",
        "2": "一",
        "gloss": "one"
      },
      "expansion": "一 (“one”)",
      "name": "m"
    },
    {
      "args": {
        "1": "ko",
        "2": "旦",
        "gloss": "morning"
      },
      "expansion": "旦 (“morning”)",
      "name": "m"
    },
    {
      "args": {
        "1": "一",
        "2": "one",
        "3": "旦",
        "4": "morning"
      },
      "expansion": "Sino-Korean word from 一旦, from 一 (“one”) + 旦 (“morning”)",
      "name": "ko-etym-Sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 一旦, from 一 (“one”) + 旦 (“morning”)",
  "forms": [
    {
      "form": "ildan",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "一旦",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "一旦"
      },
      "expansion": "일단 • (ildan) (hanja 一旦)",
      "name": "ko-adv"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "_dis": "65 35",
          "kind": "other",
          "name": "Korean entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "80 20",
          "kind": "other",
          "name": "Korean terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "77 23",
          "kind": "other",
          "name": "Korean terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "63 37",
          "kind": "other",
          "name": "Sino-Korean words",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "first and foremost"
      ],
      "id": "en-일단-ko-adv-CjQ~cCt2",
      "links": [
        [
          "first and foremost",
          "first and foremost"
        ]
      ]
    },
    {
      "glosses": [
        "first, for a moment; just for starters"
      ],
      "id": "en-일단-ko-adv-iZCrfQUF",
      "links": [
        [
          "for starters",
          "for starters"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[iɭt͈a̠n]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "other": "[일딴]"
    }
  ],
  "word": "일단"
}

{
  "categories": [
    "Korean adverbs",
    "Korean entries with incorrect language header",
    "Korean lemmas",
    "Korean terms with IPA pronunciation",
    "Korean terms with redundant script codes",
    "Korean terms with redundant transliterations",
    "Sino-Korean words"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "Sino-Korean"
      },
      "expansion": "Sino-Korean",
      "name": "l"
    },
    {
      "args": {
        "1": "ko",
        "2": "一旦"
      },
      "expansion": "一旦",
      "name": "m"
    },
    {
      "args": {
        "1": "ko",
        "2": "一",
        "gloss": "one"
      },
      "expansion": "一 (“one”)",
      "name": "m"
    },
    {
      "args": {
        "1": "ko",
        "2": "旦",
        "gloss": "morning"
      },
      "expansion": "旦 (“morning”)",
      "name": "m"
    },
    {
      "args": {
        "1": "一",
        "2": "one",
        "3": "旦",
        "4": "morning"
      },
      "expansion": "Sino-Korean word from 一旦, from 一 (“one”) + 旦 (“morning”)",
      "name": "ko-etym-Sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 一旦, from 一 (“one”) + 旦 (“morning”)",
  "forms": [
    {
      "form": "ildan",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "一旦",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "一旦"
      },
      "expansion": "일단 • (ildan) (hanja 一旦)",
      "name": "ko-adv"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "adv",
  "senses": [
    {
      "glosses": [
        "first and foremost"
      ],
      "links": [
        [
          "first and foremost",
          "first and foremost"
        ]
      ]
    },
    {
      "glosses": [
        "first, for a moment; just for starters"
      ],
      "links": [
        [
          "for starters",
          "for starters"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[iɭt͈a̠n]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "other": "[일딴]"
    }
  ],
  "word": "일단"
}