"חג שמח" meaning in Hebrew

{
  "etymology_text": "Literally “happy holiday”.",
  "forms": [
    {
      "form": "חַג שָׂמֵחַ",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "khag saméakh",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "he",
        "2": "phrase",
        "head": "חַג שָׂמֵחַ",
        "tr": "khag saméakh"
      },
      "expansion": "חַג שָׂמֵחַ • (khag saméakh)",
      "name": "head"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "phrase",
  "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 phrasebook",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A greeting used on holidays."
      ],
      "id": "en-חג_שמח-he-phrase-eIZhNC~Q"
    }
  ],
  "word": "חג שמח"
}

{
  "etymology_text": "Literally “happy holiday”.",
  "forms": [
    {
      "form": "חַג שָׂמֵחַ",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "khag saméakh",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "he",
        "2": "phrase",
        "head": "חַג שָׂמֵחַ",
        "tr": "khag saméakh"
      },
      "expansion": "חַג שָׂמֵחַ • (khag saméakh)",
      "name": "head"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "Hebrew entries with incorrect language header",
        "Hebrew lemmas",
        "Hebrew multiword terms",
        "Hebrew phrasebook",
        "Hebrew phrases",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A greeting used on holidays."
      ]
    }
  ],
  "word": "חג שמח"
}