"odjednom" meaning in Serbo-Croatian

{
  "etymology_templates": [
    {
      "args": {
        "1": "sh",
        "2": "od",
        "3": "jedan"
      },
      "expansion": "od- + jedan",
      "name": "prefix"
    }
  ],
  "etymology_text": "From od- + jedan.",
  "forms": [
    {
      "form": "odjèdnōm",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "одјѐдно̄м",
      "tags": [
        "Cyrillic"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "odjèdnōm"
      },
      "expansion": "odjèdnōm (Cyrillic spelling одјѐдно̄м)",
      "name": "sh-adverb"
    }
  ],
  "hyphenation": [
    "od‧jed‧nom"
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Serbo-Croatian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Serbo-Croatian terms prefixed with od-",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "suddenly, unexpectedly, at once"
      ],
      "id": "en-odjednom-sh-adv-5G7NyFgw",
      "links": [
        [
          "suddenly",
          "suddenly"
        ],
        [
          "unexpectedly",
          "unexpectedly"
        ]
      ],
      "related": [
        {
          "word": "najednom"
        },
        {
          "word": "iznenada"
        },
        {
          "word": "odjedanput"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/odjědnoːm/"
    }
  ],
  "word": "odjednom"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "sh",
        "2": "od",
        "3": "jedan"
      },
      "expansion": "od- + jedan",
      "name": "prefix"
    }
  ],
  "etymology_text": "From od- + jedan.",
  "forms": [
    {
      "form": "odjèdnōm",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "одјѐдно̄м",
      "tags": [
        "Cyrillic"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "odjèdnōm"
      },
      "expansion": "odjèdnōm (Cyrillic spelling одјѐдно̄м)",
      "name": "sh-adverb"
    }
  ],
  "hyphenation": [
    "od‧jed‧nom"
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "adv",
  "related": [
    {
      "word": "najednom"
    },
    {
      "word": "iznenada"
    },
    {
      "word": "odjedanput"
    }
  ],
  "senses": [
    {
      "categories": [
        "Serbo-Croatian adverbs",
        "Serbo-Croatian entries with incorrect language header",
        "Serbo-Croatian lemmas",
        "Serbo-Croatian terms prefixed with od-",
        "Serbo-Croatian terms with IPA pronunciation"
      ],
      "glosses": [
        "suddenly, unexpectedly, at once"
      ],
      "links": [
        [
          "suddenly",
          "suddenly"
        ],
        [
          "unexpectedly",
          "unexpectedly"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/odjědnoːm/"
    }
  ],
  "word": "odjednom"
}