"zerba" meaning in Basque

{
  "categories": [
    {
      "kind": "other",
      "name": "Aliments en basque",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Légumes en basque",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en basque",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Plantes en basque",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Wiktionnaire:Étymologies manquantes en basque",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Basque",
      "orig": "basque",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Étymologie manquante ou incomplète. Si vous la connaissez, vous pouvez l’ajouter en cliquant ici."
  ],
  "forms": [
    {
      "form": "Déclinaison"
    }
  ],
  "lang": "Basque",
  "lang_code": "eu",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "zarba"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Plantes en basque",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "La blette, (nom binominal = Beta vulgaris)."
      ],
      "id": "fr-zerba-eu-noun-IbJgMnYO",
      "topics": [
        "botany"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "azalki"
    },
    {
      "word": "beleta"
    },
    {
      "word": "betarga"
    },
    {
      "word": "bezar"
    }
  ],
  "word": "zerba"
}

{
  "categories": [
    "Aliments en basque",
    "Légumes en basque",
    "Noms communs en basque",
    "Plantes en basque",
    "Wiktionnaire:Étymologies manquantes en basque",
    "basque"
  ],
  "etymology_texts": [
    "Étymologie manquante ou incomplète. Si vous la connaissez, vous pouvez l’ajouter en cliquant ici."
  ],
  "forms": [
    {
      "form": "Déclinaison"
    }
  ],
  "lang": "Basque",
  "lang_code": "eu",
  "pos": "noun",
  "pos_title": "Nom commun",
  "related": [
    {
      "word": "zarba"
    }
  ],
  "senses": [
    {
      "categories": [
        "Plantes en basque"
      ],
      "glosses": [
        "La blette, (nom binominal = Beta vulgaris)."
      ],
      "topics": [
        "botany"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "azalki"
    },
    {
      "word": "beleta"
    },
    {
      "word": "betarga"
    },
    {
      "word": "bezar"
    }
  ],
  "word": "zerba"
}