"OPC DA" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
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      "alt_of": [
        {
          "extra": "first of a group of specifications known as the Classic OPC Specifications.",
          "word": "OPC Data Access"
        }
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          "langcode": "en",
          "name": "Communication",
          "orig": "en:Communication",
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            "All topics",
            "Fundamental"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Programming",
          "orig": "en:Programming",
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            "Software engineering",
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            "Media",
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      ],
      "glosses": [
        "Initialism of OPC Data Access (first of a group of specifications known as the Classic OPC Specifications.)"
      ],
      "hypernyms": [
        {
          "word": "OPC"
        }
      ],
      "hyponyms": [
        {
          "word": "OPC HDA"
        }
      ],
      "id": "en-OPC_DA-en-name-dJiFy0cG",
      "links": [
        [
          "communication",
          "communication"
        ],
        [
          "programming",
          "programming#Noun"
        ],
        [
          "OPC",
          "OPC#English"
        ],
        [
          "Data",
          "data#English"
        ],
        [
          "Access",
          "access#English"
        ]
      ],
      "raw_glosses": [
        "(communication, programming) Initialism of OPC Data Access (first of a group of specifications known as the Classic OPC Specifications.)"
      ],
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        "communication",
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        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "programming",
        "sciences"
      ]
    }
  ],
  "word": "OPC DA"
}

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      "expansion": "OPC DA",
      "name": "head"
    }
  ],
  "hypernyms": [
    {
      "word": "OPC"
    }
  ],
  "hyponyms": [
    {
      "word": "OPC HDA"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
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          "word": "OPC Data Access"
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        "en:Communication",
        "en:Programming"
      ],
      "glosses": [
        "Initialism of OPC Data Access (first of a group of specifications known as the Classic OPC Specifications.)"
      ],
      "links": [
        [
          "communication",
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        ],
        [
          "programming",
          "programming#Noun"
        ],
        [
          "OPC",
          "OPC#English"
        ],
        [
          "Data",
          "data#English"
        ],
        [
          "Access",
          "access#English"
        ]
      ],
      "raw_glosses": [
        "(communication, programming) Initialism of OPC Data Access (first of a group of specifications known as the Classic OPC Specifications.)"
      ],
      "tags": [
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        "initialism"
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      "topics": [
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        "programming",
        "sciences"
      ]
    }
  ],
  "word": "OPC DA"
}