"big hitter" meaning in English

{
  "forms": [
    {
      "form": "big hitters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "big hitter (plural big hitters)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "2024 January 10, Christian Wolmar, “A time for change? ... just as it was back in issue 262”, in RAIL, number 1000, page 60",
          "text": "It is easy to forget, given the lack of an impressive Transport Secretary since Patrick McLoughlin, that there have been several big hitters in the job.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A powerful and influential person."
      ],
      "id": "en-big_hitter-en-noun-rSG6ggb4",
      "links": [
        [
          "powerful",
          "powerful"
        ],
        [
          "influential",
          "influential"
        ]
      ],
      "raw_glosses": [
        "(informal) A powerful and influential person."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "big hitter"
}

{
  "forms": [
    {
      "form": "big hitters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "big hitter (plural big hitters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2024 January 10, Christian Wolmar, “A time for change? ... just as it was back in issue 262”, in RAIL, number 1000, page 60",
          "text": "It is easy to forget, given the lack of an impressive Transport Secretary since Patrick McLoughlin, that there have been several big hitters in the job.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A powerful and influential person."
      ],
      "links": [
        [
          "powerful",
          "powerful"
        ],
        [
          "influential",
          "influential"
        ]
      ],
      "raw_glosses": [
        "(informal) A powerful and influential person."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "big hitter"
}