"Duo" meaning in English

{
  "head_templates": [
    {
      "args": {},
      "expansion": "Duo",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "place",
          "langcode": "en",
          "name": "Places in West Virginia, USA",
          "orig": "en:Places in West Virginia, USA",
          "parents": [
            "Places"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "en",
          "name": "Places in the United States",
          "orig": "en:Places in the United States",
          "parents": [
            "Places"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "en",
          "name": "Unincorporated communities in West Virginia, USA",
          "orig": "en:Unincorporated communities in West Virginia, USA",
          "parents": [
            "Unincorporated communities",
            "Places"
          ],
          "source": "w"
        },
        {
          "_dis": "77 23",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "77 13 2 8",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "84 9 2 6",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "94 6",
          "kind": "other",
          "langcode": "en",
          "name": "Fictional characters",
          "orig": "en:Fictional characters",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An unincorporated community in West Virginia."
      ],
      "id": "en-Duo-en-name-Cn7xl7OD",
      "links": [
        [
          "unincorporated community",
          "unincorporated community"
        ],
        [
          "West Virginia",
          "West Virginia#English"
        ]
      ]
    },
    {
      "glosses": [
        "The mascot owl of Duolingo."
      ],
      "id": "en-Duo-en-name-N~IYzcOc",
      "links": [
        [
          "mascot",
          "mascot"
        ]
      ]
    }
  ],
  "word": "Duo"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English proper nouns",
    "English uncountable nouns",
    "Pages with 2 entries",
    "Pages with entries",
    "en:Fictional characters"
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Duo",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "en:Places in West Virginia, USA",
        "en:Places in the United States",
        "en:Unincorporated communities in West Virginia, USA"
      ],
      "glosses": [
        "An unincorporated community in West Virginia."
      ],
      "links": [
        [
          "unincorporated community",
          "unincorporated community"
        ],
        [
          "West Virginia",
          "West Virginia#English"
        ]
      ]
    },
    {
      "glosses": [
        "The mascot owl of Duolingo."
      ],
      "links": [
        [
          "mascot",
          "mascot"
        ]
      ]
    }
  ],
  "word": "Duo"
}