"opus" meaning in English

{
  "forms": [
    {
      "form": "opus",
      "tags": [
        "singular"
      ]
    },
    {
      "form": "opuses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "2": "opuses"
      },
      "expansion": "[POS TABLE]",
      "name": "noun"
    }
  ],
  "hyphenation": "o‧pus",
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [],
      "examples": [
        {
          "text": "Beethoven's final symphony is considered his greatest opus."
        }
      ],
      "glosses": [
        "An opus is a large and important work of art, especially a piece of music or literature."
      ],
      "id": "simple-opus-en-noun-q-W~3Srv",
      "raw_tags": [
        "countable"
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "text": "Chopin’s Opus 35 includes the famous Funeral March."
        }
      ],
      "glosses": [
        "In music, an opus is a numbered composition to show the order in which the works were created."
      ],
      "id": "simple-opus-en-noun-k4d-bnOg",
      "raw_tags": [
        "countable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈoʊpəs/"
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-opus.wav",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "opus"
}

{
  "forms": [
    {
      "form": "opus",
      "tags": [
        "singular"
      ]
    },
    {
      "form": "opuses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "2": "opuses"
      },
      "expansion": "[POS TABLE]",
      "name": "noun"
    }
  ],
  "hyphenation": "o‧pus",
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Countable nouns"
      ],
      "examples": [
        {
          "text": "Beethoven's final symphony is considered his greatest opus."
        }
      ],
      "glosses": [
        "An opus is a large and important work of art, especially a piece of music or literature."
      ],
      "raw_tags": [
        "countable"
      ]
    },
    {
      "categories": [
        "Countable nouns"
      ],
      "examples": [
        {
          "text": "Chopin’s Opus 35 includes the famous Funeral March."
        }
      ],
      "glosses": [
        "In music, an opus is a numbered composition to show the order in which the works were created."
      ],
      "raw_tags": [
        "countable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈoʊpəs/"
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-opus.wav",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "opus"
}