"weakest link" meaning in English

{
  "etymology_text": "The figurative sense comes by metaphor from the literal sense: the notion that a chain is only as strong as its weakest link. (See historical details there.)",
  "forms": [
    {
      "form": "weakest links",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "weakest link (plural weakest links)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Systems theory",
          "orig": "en:Systems theory",
          "parents": [
            "Sciences",
            "Systems",
            "All topics",
            "Interdisciplinary fields",
            "Society",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The part of a system that is most likely to fail or cause problems."
      ],
      "id": "en-weakest_link-en-noun-eguQVgqI",
      "links": [
        [
          "system",
          "system"
        ]
      ],
      "related": [
        {
          "word": "a chain is only as strong as its weakest link"
        }
      ],
      "synonyms": [
        {
          "word": "Achilles heel"
        },
        {
          "word": "weak point"
        },
        {
          "word": "weak link"
        }
      ],
      "translations": [
        {
          "code": "nl",
          "lang": "Dutch",
          "sense": "the part of a system that is most likely to fail or cause problems",
          "tags": [
            "feminine",
            "masculine"
          ],
          "word": "zwakste schakel"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "the part of a system that is most likely to fail or cause problems",
          "word": "heikoin lenkki"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "the part of a system that is most likely to fail or cause problems",
          "tags": [
            "masculine"
          ],
          "word": "maillon faible"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "the part of a system that is most likely to fail or cause problems",
          "tags": [
            "neuter"
          ],
          "word": "schwächstes Glied"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "the part of a system that is most likely to fail or cause problems",
          "word": "leggyengébb láncszem"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "the part of a system that is most likely to fail or cause problems",
          "tags": [
            "masculine"
          ],
          "word": "anello debole"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "the part of a system that is most likely to fail or cause problems",
          "tags": [
            "neuter"
          ],
          "word": "najsłabsze ogniwo"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "sláboje zvenó",
          "sense": "the part of a system that is most likely to fail or cause problems",
          "tags": [
            "neuter"
          ],
          "word": "сла́бое звено́"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "the part of a system that is most likely to fail or cause problems",
          "tags": [
            "masculine"
          ],
          "word": "eslabón más débil"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "the part of a system that is most likely to fail or cause problems",
          "tags": [
            "common-gender",
            "definite"
          ],
          "word": "svagaste länken"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "the part of a system that is most likely to fail or cause problems",
          "tags": [
            "common-gender"
          ],
          "word": "akilleshäl"
        }
      ]
    }
  ],
  "word": "weakest link"
}

{
  "etymology_text": "The figurative sense comes by metaphor from the literal sense: the notion that a chain is only as strong as its weakest link. (See historical details there.)",
  "forms": [
    {
      "form": "weakest links",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "weakest link (plural weakest links)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "a chain is only as strong as its weakest link"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Systems theory"
      ],
      "glosses": [
        "The part of a system that is most likely to fail or cause problems."
      ],
      "links": [
        [
          "system",
          "system"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Achilles heel"
    },
    {
      "word": "weak point"
    },
    {
      "word": "weak link"
    }
  ],
  "translations": [
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "the part of a system that is most likely to fail or cause problems",
      "tags": [
        "feminine",
        "masculine"
      ],
      "word": "zwakste schakel"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "the part of a system that is most likely to fail or cause problems",
      "word": "heikoin lenkki"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "the part of a system that is most likely to fail or cause problems",
      "tags": [
        "masculine"
      ],
      "word": "maillon faible"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "the part of a system that is most likely to fail or cause problems",
      "tags": [
        "neuter"
      ],
      "word": "schwächstes Glied"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "the part of a system that is most likely to fail or cause problems",
      "word": "leggyengébb láncszem"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "the part of a system that is most likely to fail or cause problems",
      "tags": [
        "masculine"
      ],
      "word": "anello debole"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "the part of a system that is most likely to fail or cause problems",
      "tags": [
        "neuter"
      ],
      "word": "najsłabsze ogniwo"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "sláboje zvenó",
      "sense": "the part of a system that is most likely to fail or cause problems",
      "tags": [
        "neuter"
      ],
      "word": "сла́бое звено́"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "the part of a system that is most likely to fail or cause problems",
      "tags": [
        "masculine"
      ],
      "word": "eslabón más débil"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "the part of a system that is most likely to fail or cause problems",
      "tags": [
        "common-gender",
        "definite"
      ],
      "word": "svagaste länken"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "the part of a system that is most likely to fail or cause problems",
      "tags": [
        "common-gender"
      ],
      "word": "akilleshäl"
    }
  ],
  "word": "weakest link"
}