"-을" meaning in Middle Korean

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ko",
            "2": "을"
          },
          "expansion": "Korean: 을 (eul)",
          "name": "desc"
        }
      ],
      "text": "Korean: 을 (eul)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "okm",
        "2": "oko",
        "3": "乙",
        "tr": "*-(u)r"
      },
      "expansion": "Old Korean 乙 (*-(u)r)",
      "name": "der"
    }
  ],
  "etymology_text": "From Old Korean 乙 (*-(u)r).",
  "forms": [
    {
      "form": "을〮",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "-úl",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "okm",
        "2": "particle",
        "head": "을〮",
        "tr": "-úl"
      },
      "expansion": "을〮 (-úl)",
      "name": "head"
    }
  ],
  "lang": "Middle Korean",
  "lang_code": "okm",
  "pos": "particle",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Middle Korean entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Middle Korean particles",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Middle Korean terms with non-redundant manual transliterations",
          "parents": [
            "Terms with non-redundant manual transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Accusative case marker."
      ],
      "id": "en--을-okm-particle-wNz6gH6C",
      "synonyms": [
        {
          "roman": "-lúl",
          "word": "를〮"
        },
        {
          "english": "after vowels",
          "roman": "-lól",
          "word": "ᄅᆞᆯ〮"
        },
        {
          "english": "after vowels",
          "roman": "-l",
          "word": "ㄹ"
        },
        {
          "word": "variant"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɨl/"
    }
  ],
  "word": "-을"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ko",
            "2": "을"
          },
          "expansion": "Korean: 을 (eul)",
          "name": "desc"
        }
      ],
      "text": "Korean: 을 (eul)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "okm",
        "2": "oko",
        "3": "乙",
        "tr": "*-(u)r"
      },
      "expansion": "Old Korean 乙 (*-(u)r)",
      "name": "der"
    }
  ],
  "etymology_text": "From Old Korean 乙 (*-(u)r).",
  "forms": [
    {
      "form": "을〮",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "-úl",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "okm",
        "2": "particle",
        "head": "을〮",
        "tr": "-úl"
      },
      "expansion": "을〮 (-úl)",
      "name": "head"
    }
  ],
  "lang": "Middle Korean",
  "lang_code": "okm",
  "pos": "particle",
  "senses": [
    {
      "categories": [
        "Middle Korean entries with incorrect language header",
        "Middle Korean lemmas",
        "Middle Korean particles",
        "Middle Korean terms derived from Old Korean",
        "Middle Korean terms with IPA pronunciation",
        "Middle Korean terms with non-redundant manual transliterations"
      ],
      "glosses": [
        "Accusative case marker."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɨl/"
    }
  ],
  "synonyms": [
    {
      "roman": "-lúl",
      "word": "를〮"
    },
    {
      "english": "after vowels",
      "roman": "-lól",
      "word": "ᄅᆞᆯ〮"
    },
    {
      "english": "after vowels",
      "roman": "-l",
      "word": "ㄹ"
    },
    {
      "word": "variant"
    }
  ],
  "word": "-을"
}