"epic formula" meaning in English

{
  "forms": [
    {
      "form": "epic formulas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s"
      },
      "expansion": "epic formula (plural epic formulas)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
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        },
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          "name": "Terms with Greek translations",
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        }
      ],
      "glosses": [
        "A metrically-suitable fixed phrase or verse that is repeated in an epic poem."
      ],
      "id": "en-epic_formula-en-noun-onrLZNxC",
      "links": [
        [
          "epic poetry",
          "epic poetry"
        ]
      ],
      "raw_glosses": [
        "(epic poetry) A metrically-suitable fixed phrase or verse that is repeated in an epic poem."
      ],
      "tags": [
        "epic"
      ],
      "topics": [
        "communications",
        "journalism",
        "literature",
        "media",
        "poetry",
        "publishing",
        "writing"
      ],
      "translations": [
        {
          "code": "el",
          "lang": "Greek",
          "lang_code": "el",
          "roman": "logótypos",
          "sense": "Translations",
          "tags": [
            "masculine"
          ],
          "word": "λογότυπος"
        }
      ]
    }
  ],
  "word": "epic formula"
}

{
  "forms": [
    {
      "form": "epic formulas",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s"
      },
      "expansion": "epic formula (plural epic formulas)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
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        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Greek translations",
        "Translation table header lacks gloss"
      ],
      "glosses": [
        "A metrically-suitable fixed phrase or verse that is repeated in an epic poem."
      ],
      "links": [
        [
          "epic poetry",
          "epic poetry"
        ]
      ],
      "raw_glosses": [
        "(epic poetry) A metrically-suitable fixed phrase or verse that is repeated in an epic poem."
      ],
      "tags": [
        "epic"
      ],
      "topics": [
        "communications",
        "journalism",
        "literature",
        "media",
        "poetry",
        "publishing",
        "writing"
      ]
    }
  ],
  "translations": [
    {
      "code": "el",
      "lang": "Greek",
      "lang_code": "el",
      "roman": "logótypos",
      "sense": "Translations",
      "tags": [
        "masculine"
      ],
      "word": "λογότυπος"
    }
  ],
  "word": "epic formula"
}