"RE" meaning in French

{
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "RE f",
      "name": "fr-proper noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Renaissance"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "French politics",
          "orig": "fr:French politics",
          "parents": [
            "European politics",
            "France",
            "Europe",
            "Politics",
            "Earth",
            "Eurasia",
            "Society",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of Renaissance."
      ],
      "id": "en-RE-fr-name-K2r1ioVn",
      "links": [
        [
          "Renaissance",
          "w:Renaissance (French political party)"
        ]
      ],
      "raw_glosses": [
        "(French politics) Abbreviation of Renaissance."
      ],
      "tags": [
        "French",
        "abbreviation",
        "alt-of",
        "feminine"
      ],
      "topics": [
        "government",
        "politics"
      ]
    }
  ],
  "word": "RE"
}

{
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "RE f",
      "name": "fr-proper noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Renaissance"
        }
      ],
      "categories": [
        "French abbreviations",
        "French entries with incorrect language header",
        "French feminine nouns",
        "French lemmas",
        "French proper nouns",
        "Pages with 3 entries",
        "Pages with entries",
        "fr:French politics"
      ],
      "glosses": [
        "Abbreviation of Renaissance."
      ],
      "links": [
        [
          "Renaissance",
          "w:Renaissance (French political party)"
        ]
      ],
      "raw_glosses": [
        "(French politics) Abbreviation of Renaissance."
      ],
      "tags": [
        "French",
        "abbreviation",
        "alt-of",
        "feminine"
      ],
      "topics": [
        "government",
        "politics"
      ]
    }
  ],
  "word": "RE"
}