"post oak" meaning in English

{
  "forms": [
    {
      "form": "post oaks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "post oak (plural post oaks)",
      "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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          "source": "w"
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          "source": "w"
        },
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          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Oaks",
          "orig": "en:Oaks",
          "parents": [
            "Beech family plants",
            "Trees",
            "Fagales order plants",
            "Plants",
            "Shrubs",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "post oak bluff"
        }
      ],
      "glosses": [
        "A tree of the species Quercus stellata (family Fagaceae), native to North America."
      ],
      "id": "en-post_oak-en-noun-DaMT5Cdq",
      "links": [
        [
          "Fagaceae",
          "Fagaceae#Translingual"
        ]
      ],
      "synonyms": [
        {
          "word": "iron oak"
        }
      ],
      "wikipedia": [
        "post oak"
      ]
    }
  ],
  "word": "post oak"
}

{
  "derived": [
    {
      "word": "post oak bluff"
    }
  ],
  "forms": [
    {
      "form": "post oaks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "post oak (plural post oaks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
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        "Entries with translation boxes",
        "Pages with 1 entry",
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        "en:Oaks"
      ],
      "glosses": [
        "A tree of the species Quercus stellata (family Fagaceae), native to North America."
      ],
      "links": [
        [
          "Fagaceae",
          "Fagaceae#Translingual"
        ]
      ],
      "wikipedia": [
        "post oak"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "iron oak"
    }
  ],
  "word": "post oak"
}