"big-timer" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "big time",
        "3": "er",
        "id2": "occupation"
      },
      "expansion": "big time + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "big time + -er",
  "forms": [
    {
      "form": "big-timers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "big-timer (plural big-timers)",
      "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 terms suffixed with -er (occupation)",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1992, Shashi Tharoor, Show Business: A Novel, page 144",
          "text": "The small-timers, as he put it, kept their currency in their homes, in safes, in false ceilings, under beds. When necessary, our tax people know where to look. The big-timers, however, use Swiss banks.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A major player in the field in question: someone who is in the big time"
      ],
      "id": "en-big-timer-en-noun-fi~tU2Kz",
      "links": [
        [
          "big time",
          "big time"
        ]
      ]
    }
  ],
  "word": "big-timer"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "big time",
        "3": "er",
        "id2": "occupation"
      },
      "expansion": "big time + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "big time + -er",
  "forms": [
    {
      "form": "big-timers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "big-timer (plural big-timers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms suffixed with -er (occupation)",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1992, Shashi Tharoor, Show Business: A Novel, page 144",
          "text": "The small-timers, as he put it, kept their currency in their homes, in safes, in false ceilings, under beds. When necessary, our tax people know where to look. The big-timers, however, use Swiss banks.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A major player in the field in question: someone who is in the big time"
      ],
      "links": [
        [
          "big time",
          "big time"
        ]
      ]
    }
  ],
  "word": "big-timer"
}