"extra base hit" meaning in English

{
  "forms": [
    {
      "form": "extra base hits",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "extra base hit (plural extra base hits)",
      "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"
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          "source": "w"
        },
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        },
        {
          "kind": "other",
          "name": "Terms with Portuguese translations",
          "parents": [],
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Baseball",
          "orig": "en:Baseball",
          "parents": [
            "Ball games",
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A double, triple, or home run."
      ],
      "id": "en-extra_base_hit-en-noun-D5v6~aWa",
      "links": [
        [
          "baseball",
          "baseball"
        ],
        [
          "double",
          "double"
        ],
        [
          "triple",
          "triple"
        ],
        [
          "home run",
          "home run"
        ]
      ],
      "raw_glosses": [
        "(baseball) A double, triple, or home run."
      ],
      "topics": [
        "ball-games",
        "baseball",
        "games",
        "hobbies",
        "lifestyle",
        "sports"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "chángdǎ",
          "sense": "baseball: hit",
          "word": "長打 /长打"
        },
        {
          "alt": "ちょうだ",
          "code": "ja",
          "lang": "Japanese",
          "roman": "chōda",
          "sense": "baseball: hit",
          "word": "長打"
        },
        {
          "alt": "長打",
          "code": "ko",
          "lang": "Korean",
          "roman": "jangta",
          "sense": "baseball: hit",
          "word": "장타"
        }
      ]
    }
  ],
  "word": "extra base hit"
}

{
  "forms": [
    {
      "form": "extra base hits",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "extra base hit (plural extra base hits)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "English countable nouns",
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        "en:Baseball"
      ],
      "glosses": [
        "A double, triple, or home run."
      ],
      "links": [
        [
          "baseball",
          "baseball"
        ],
        [
          "double",
          "double"
        ],
        [
          "triple",
          "triple"
        ],
        [
          "home run",
          "home run"
        ]
      ],
      "raw_glosses": [
        "(baseball) A double, triple, or home run."
      ],
      "topics": [
        "ball-games",
        "baseball",
        "games",
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "chángdǎ",
      "sense": "baseball: hit",
      "word": "長打 /长打"
    },
    {
      "alt": "ちょうだ",
      "code": "ja",
      "lang": "Japanese",
      "roman": "chōda",
      "sense": "baseball: hit",
      "word": "長打"
    },
    {
      "alt": "長打",
      "code": "ko",
      "lang": "Korean",
      "roman": "jangta",
      "sense": "baseball: hit",
      "word": "장타"
    }
  ],
  "word": "extra base hit"
}