"יחדיו" meaning in Hebrew

{
  "forms": [
    {
      "form": "יַחְדָּו",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "yakhdáv",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "dwv": "יַחְדָּו",
        "tr": "yakhdáv"
      },
      "expansion": "יחדיו / יַחְדָּו • (yakhdáv)",
      "name": "he-adv"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Hebrew entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Hebrew terms belonging to the root י־ח־ד",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "together"
      ],
      "id": "en-יחדיו-he-adv-DCRzTXv1",
      "links": [
        [
          "together",
          "together"
        ]
      ],
      "synonyms": [
        {
          "word": "ביחד"
        },
        {
          "word": "יַחַד"
        }
      ]
    }
  ],
  "word": "יחדיו"
}

{
  "forms": [
    {
      "form": "יַחְדָּו",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "yakhdáv",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "dwv": "יַחְדָּו",
        "tr": "yakhdáv"
      },
      "expansion": "יחדיו / יַחְדָּו • (yakhdáv)",
      "name": "he-adv"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Hebrew adverbs",
        "Hebrew entries with incorrect language header",
        "Hebrew lemmas",
        "Hebrew terms belonging to the root י־ח־ד"
      ],
      "glosses": [
        "together"
      ],
      "links": [
        [
          "together",
          "together"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "ביחד"
    },
    {
      "word": "יַחַד"
    }
  ],
  "word": "יחדיו"
}