"gen" meaning in Allemand

{
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en allemand",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Prépositions en allemand",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Allemand",
      "orig": "allemand",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Allemand",
  "lang_code": "de",
  "pos": "prep",
  "pos_title": "Préposition",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Termes vieillis en allemand",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en allemand",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Vers."
      ],
      "id": "fr-gen-de-prep-D5FPqnlH",
      "tags": [
        "dated"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɡɛn\\"
    }
  ],
  "synonyms": [
    {
      "word": "gegen"
    },
    {
      "word": "nach"
    },
    {
      "word": "zum"
    },
    {
      "word": "zur"
    }
  ],
  "word": "gen"
}

{
  "categories": [
    "Lemmes en allemand",
    "Prépositions en allemand",
    "allemand"
  ],
  "lang": "Allemand",
  "lang_code": "de",
  "pos": "prep",
  "pos_title": "Préposition",
  "senses": [
    {
      "categories": [
        "Termes vieillis en allemand",
        "Wiktionnaire:Exemples manquants en allemand"
      ],
      "glosses": [
        "Vers."
      ],
      "tags": [
        "dated"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɡɛn\\"
    }
  ],
  "synonyms": [
    {
      "word": "gegen"
    },
    {
      "word": "nach"
    },
    {
      "word": "zum"
    },
    {
      "word": "zur"
    }
  ],
  "word": "gen"
}