"chag sameach" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "he",
        "3": "חַג שָׂמֵחַ",
        "tr": "khag saméakh"
      },
      "expansion": "Hebrew חַג שָׂמֵחַ (khag saméakh)",
      "name": "bor"
    }
  ],
  "etymology_text": "From Hebrew חַג שָׂמֵחַ (khag saméakh).",
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "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 Jewish holidays."
      ],
      "id": "en-chag_sameach-en-intj-bkBSM3dn"
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈxɑɡ səˈmeɪəx/"
    }
  ],
  "word": "chag sameach"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "he",
        "3": "חַג שָׂמֵחַ",
        "tr": "khag saméakh"
      },
      "expansion": "Hebrew חַג שָׂמֵחַ (khag saméakh)",
      "name": "bor"
    }
  ],
  "etymology_text": "From Hebrew חַג שָׂמֵחַ (khag saméakh).",
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English interjections",
        "English lemmas",
        "English multiword terms",
        "English terms borrowed from Hebrew",
        "English terms derived from Hebrew",
        "English terms with /x/",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A greeting used on Jewish holidays."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈxɑɡ səˈmeɪəx/"
    }
  ],
  "word": "chag sameach"
}