"effe" meaning in French

{
  "forms": [
    {
      "form": "effes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "effe m (plural effes)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Latin letter names",
          "orig": "fr:Latin letter names",
          "parents": [
            "Letter names",
            "Letters, symbols, and punctuation",
            "Names",
            "Orthography",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Writing",
            "Fundamental",
            "Nouns",
            "Human behaviour",
            "Language",
            "Lemmas",
            "Human",
            "Communication"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The name of the Latin-script letter F."
      ],
      "id": "en-effe-fr-noun-MzTHLWj9",
      "links": [
        [
          "F",
          "F#French"
        ]
      ],
      "synonyms": [
        {
          "word": "èfe"
        }
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛf/"
    }
  ],
  "word": "effe"
}

{
  "forms": [
    {
      "form": "effes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "effe m (plural effes)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "French 1-syllable words",
        "French countable nouns",
        "French entries with incorrect language header",
        "French lemmas",
        "French masculine nouns",
        "French nouns",
        "French palindromes",
        "French terms with IPA pronunciation",
        "fr:Latin letter names"
      ],
      "glosses": [
        "The name of the Latin-script letter F."
      ],
      "links": [
        [
          "F",
          "F#French"
        ]
      ],
      "tags": [
        "masculine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛf/"
    }
  ],
  "synonyms": [
    {
      "word": "èfe"
    }
  ],
  "word": "effe"
}