"Ahilova peta" meaning in Serbo-Croatian

{
  "forms": [
    {
      "form": "Ахилова пета",
      "tags": [
        "Cyrillic"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "f"
      },
      "expansion": "Ahilova peta f (Cyrillic spelling Ахилова пета)",
      "name": "sh-noun"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Serbo-Croatian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Achilles heel"
      ],
      "id": "en-Ahilova_peta-sh-noun-BeMZdmd5",
      "links": [
        [
          "Achilles heel",
          "Achilles heel"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "Ahilova peta"
}

{
  "forms": [
    {
      "form": "Ахилова пета",
      "tags": [
        "Cyrillic"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "f"
      },
      "expansion": "Ahilova peta f (Cyrillic spelling Ахилова пета)",
      "name": "sh-noun"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Serbo-Croatian entries with incorrect language header",
        "Serbo-Croatian feminine nouns",
        "Serbo-Croatian lemmas",
        "Serbo-Croatian multiword terms",
        "Serbo-Croatian nouns"
      ],
      "glosses": [
        "Achilles heel"
      ],
      "links": [
        [
          "Achilles heel",
          "Achilles heel"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "Ahilova peta"
}