"second to none" meaning in English

{
  "etymology_text": ": second to none < → δείτε τις λέξεις second, to και none",
  "forms": [
    {
      "form": "second to none"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Ιδιωματισμοί (αγγλικά)",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "He is second to none.",
          "translation": "Δεν τον ξεπερνάει κανένας"
        }
      ],
      "glosses": [
        "δεν τον ξεπερνάει κανένας, ο καλύτερος από όλους"
      ],
      "id": "el-second_to_none-en-phrase-kSbWyAt5",
      "raw_tags": [
        "ιδιωματισμός"
      ]
    }
  ],
  "word": "second to none"
}

{
  "etymology_text": ": second to none < → δείτε τις λέξεις second, to και none",
  "forms": [
    {
      "form": "second to none"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "Ιδιωματισμοί (αγγλικά)"
      ],
      "examples": [
        {
          "text": "He is second to none.",
          "translation": "Δεν τον ξεπερνάει κανένας"
        }
      ],
      "glosses": [
        "δεν τον ξεπερνάει κανένας, ο καλύτερος από όλους"
      ],
      "raw_tags": [
        "ιδιωματισμός"
      ]
    }
  ],
  "word": "second to none"
}