[
  {
    "word": "dual",
    "phonetic": "/\u02c8dju\u02d0.\u0259l/",
    "phonetics": [
      {
        "text": "/\u02c8dju\u02d0.\u0259l/",
        "audio": "https://api.dictionaryapi.dev/media/pronunciations/en/dual-uk.mp3",
        "sourceUrl": "https://commons.wikimedia.org/w/index.php?curid=53355513",
        "license": {
          "name": "BY-SA 4.0",
          "url": "https://creativecommons.org/licenses/by-sa/4.0"
        }
      },
      {
        "text": "/\u02c8d(j)u\u02d0.\u0259l/",
        "audio": ""
      }
    ],
    "meanings": [
      {
        "partOfSpeech": "noun",
        "definitions": [
          {
            "definition": "Of an item that is one of a pair, the other item in the pair.",
            "synonyms": [],
            "antonyms": []
          },
          {
            "definition": "Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces.",
            "synonyms": [],
            "antonyms": [],
            "example": "The octahedron is the dual of the cube."
          },
          {
            "definition": "(grammar) dual number The grammatical number of a noun marking two of something (as in singular, dual, plural), sometimes referring to two of anything (a couple of, exactly two of), or a chirality-marked pair (as in left and right, as with gloves or shoes) or in some languages as a discourse marker, \"between you and me\". A few languages display trial number.",
            "synonyms": [],
            "antonyms": []
          },
          {
            "definition": "Of a vector in an inner product space, the linear functional corresponding to taking the inner product with that vector. The set of all duals is a vector space called the dual space.",
            "synonyms": [],
            "antonyms": []
          }
        ],
        "synonyms": [],
        "antonyms": []
      },
      {
        "partOfSpeech": "verb",
        "definitions": [
          {
            "definition": "To convert from single to dual; specifically, to convert a single-carriageway road to a dual carriageway.",
            "synonyms": [],
            "antonyms": []
          }
        ],
        "synonyms": [],
        "antonyms": []
      },
      {
        "partOfSpeech": "adjective",
        "definitions": [
          {
            "definition": "Exhibiting duality; characterized by having two (usually equivalent) components.",
            "synonyms": [],
            "antonyms": []
          },
          {
            "definition": "Acting as a counterpart.",
            "synonyms": [],
            "antonyms": []
          },
          {
            "definition": "Double.",
            "synonyms": [],
            "antonyms": [],
            "example": "a dual-headed computer"
          },
          {
            "definition": "(grammar) Pertaining to grammatical number (as in singular and plural), referring to two of something, such as a pair of shoes, in the context of the singular, plural and, in some languages, trial grammatical number.",
            "synonyms": [],
            "antonyms": [],
            "example": "Modern Arabic displays a dual number, as did Homeric Greek."
          },
          {
            "definition": "Being the space of all linear functionals of (some other space).",
            "synonyms": [],
            "antonyms": []
          },
          {
            "definition": "Being the dual of some other category; containing the same objects but with source and target reversed for all morphisms.",
            "synonyms": [],
            "antonyms": []
          }
        ],
        "synonyms": [
          "opposite",
          "double",
          "duplicate",
          "double",
          "twin"
        ],
        "antonyms": []
      }
    ],
    "license": {
      "name": "CC BY-SA 3.0",
      "url": "https://creativecommons.org/licenses/by-sa/3.0"
    },
    "sourceUrls": [
      "https://en.wiktionary.org/wiki/dual"
    ]
  }
]