"divemaster" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "dive",
        "3": "master"
      },
      "expansion": "dive + master",
      "name": "compound"
    }
  ],
  "etymology_text": "dive + master",
  "forms": [
    {
      "form": "divemasters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "divemaster (plural divemasters)",
      "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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          "parents": [
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Underwater diving",
          "orig": "en:Underwater diving",
          "parents": [
            "Water sports",
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A person responsible for a group of underwater divers."
      ],
      "id": "en-divemaster-en-noun-mZuiEHSu",
      "links": [
        [
          "underwater",
          "underwater"
        ],
        [
          "diver",
          "diver"
        ]
      ],
      "wikipedia": [
        "divemaster"
      ]
    }
  ],
  "word": "divemaster"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "dive",
        "3": "master"
      },
      "expansion": "dive + master",
      "name": "compound"
    }
  ],
  "etymology_text": "dive + master",
  "forms": [
    {
      "form": "divemasters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "divemaster (plural divemasters)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "English countable nouns",
        "English entries with incorrect language header",
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        "en:Underwater diving"
      ],
      "glosses": [
        "A person responsible for a group of underwater divers."
      ],
      "links": [
        [
          "underwater",
          "underwater"
        ],
        [
          "diver",
          "diver"
        ]
      ],
      "wikipedia": [
        "divemaster"
      ]
    }
  ],
  "word": "divemaster"
}