"rów" meaning in Polonais

{
  "categories": [
    {
      "kind": "other",
      "name": "Déverbaux en polonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en polonais issus d’un mot en vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en polonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Polonais",
      "orig": "polonais",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "rowek"
    }
  ],
  "etymology_texts": [
    "Déverbal de ryć (« creuser »), du vieux slave ровъ, rovu (« fossé ») qui donne aussi ров, rov (« fossé ») en russe et bulgare, rov (« tombe ») en tchèque."
  ],
  "lang": "Polonais",
  "lang_code": "pl",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "masculin inanimé"
  ],
  "related": [
    {
      "translation": "fesse",
      "word": "pośladek"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Fossé, tranchée."
      ],
      "id": "fr-rów-pl-noun-iwpXL6HW"
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en polonais de l’anatomie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Raie des fesses."
      ],
      "id": "fr-rów-pl-noun-FWvizETz",
      "topics": [
        "anatomy"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ruf\\"
    }
  ],
  "word": "rów"
}

{
  "categories": [
    "Déverbaux en polonais",
    "Mots en polonais issus d’un mot en vieux slave",
    "Noms communs en polonais",
    "polonais"
  ],
  "derived": [
    {
      "word": "rowek"
    }
  ],
  "etymology_texts": [
    "Déverbal de ryć (« creuser »), du vieux slave ровъ, rovu (« fossé ») qui donne aussi ров, rov (« fossé ») en russe et bulgare, rov (« tombe ») en tchèque."
  ],
  "lang": "Polonais",
  "lang_code": "pl",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "masculin inanimé"
  ],
  "related": [
    {
      "translation": "fesse",
      "word": "pośladek"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Fossé, tranchée."
      ]
    },
    {
      "categories": [
        "Lexique en polonais de l’anatomie"
      ],
      "glosses": [
        "Raie des fesses."
      ],
      "topics": [
        "anatomy"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ruf\\"
    }
  ],
  "word": "rów"
}