"sun-up" meaning in English

{
  "forms": [
    {
      "form": "sun-ups",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "sun-up (countable and uncountable, plural sun-ups)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "sunup"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
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          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
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          "source": "w"
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      "examples": [
        {
          "bold_text_offsets": [
            [
              81,
              87
            ]
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          "ref": "1884 December 10, Mark Twain [pseudonym; Samuel Langhorne Clemens], chapter VII, in The Adventures of Huckleberry Finn: (Tom Sawyer’s Comrade) […], London: Chatto & Windus, […], →OCLC:",
          "text": "I opened my eyes and looked around, trying to make out where I was. It was after sun-up, and I had been sound asleep. Pap was standing over me looking sour and sick, too.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of sunup."
      ],
      "id": "en-sun-up-en-noun-6X9lQT3y",
      "links": [
        [
          "sunup",
          "sunup#English"
        ]
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      "tags": [
        "alt-of",
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        "uncountable"
      ]
    }
  ],
  "word": "sun-up"
}

{
  "forms": [
    {
      "form": "sun-ups",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "sun-up (countable and uncountable, plural sun-ups)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "sunup"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
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          "ref": "1884 December 10, Mark Twain [pseudonym; Samuel Langhorne Clemens], chapter VII, in The Adventures of Huckleberry Finn: (Tom Sawyer’s Comrade) […], London: Chatto & Windus, […], →OCLC:",
          "text": "I opened my eyes and looked around, trying to make out where I was. It was after sun-up, and I had been sound asleep. Pap was standing over me looking sour and sick, too.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of sunup."
      ],
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        [
          "sunup",
          "sunup#English"
        ]
      ],
      "tags": [
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      ]
    }
  ],
  "word": "sun-up"
}