"baseball diamond" meaning in English

{
  "forms": [
    {
      "form": "baseball diamonds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "baseball diamond (plural baseball diamonds)",
      "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": "topical",
          "langcode": "en",
          "name": "Sports areas",
          "orig": "en:Sports areas",
          "parents": [
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A four-cornered part of a baseball field in which the corners are the three bases and the home plate."
      ],
      "id": "en-baseball_diamond-en-noun-uhQFzLvk",
      "links": [
        [
          "base",
          "base"
        ],
        [
          "home plate",
          "home plate"
        ]
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "inner part of baseball field",
          "word": "etukenttä"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "inner part of baseball field",
          "tags": [
            "masculine"
          ],
          "word": "diamante"
        },
        {
          "code": "nv",
          "lang": "Navajo",
          "sense": "inner part of baseball field",
          "word": "jooł yikalí bee nidajinénígi"
        }
      ]
    }
  ],
  "word": "baseball diamond"
}

{
  "forms": [
    {
      "form": "baseball diamonds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "baseball diamond (plural baseball diamonds)",
      "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",
        "en:Sports areas"
      ],
      "glosses": [
        "A four-cornered part of a baseball field in which the corners are the three bases and the home plate."
      ],
      "links": [
        [
          "base",
          "base"
        ],
        [
          "home plate",
          "home plate"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "inner part of baseball field",
      "word": "etukenttä"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "inner part of baseball field",
      "tags": [
        "masculine"
      ],
      "word": "diamante"
    },
    {
      "code": "nv",
      "lang": "Navajo",
      "sense": "inner part of baseball field",
      "word": "jooł yikalí bee nidajinénígi"
    }
  ],
  "word": "baseball diamond"
}