"сила" meaning in Russian

{
  "etymology_text": "сила < πρωτοσλαβικήsila",
  "forms": [
    {
      "form": "сила"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "related": [
    {
      "word": "силач"
    },
    {
      "word": "сильный"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Φυσική (ρωσικά)",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "η δύναμη"
      ],
      "id": "el-сила-ru-noun-sV-WJFHc",
      "raw_tags": [
        "φυσική"
      ]
    }
  ],
  "word": "сила"
}

{
  "etymology_text": "сила < πρωτοσλαβικήsila",
  "forms": [
    {
      "form": "сила"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "related": [
    {
      "word": "силач"
    },
    {
      "word": "сильный"
    }
  ],
  "senses": [
    {
      "categories": [
        "Φυσική (ρωσικά)"
      ],
      "glosses": [
        "η δύναμη"
      ],
      "raw_tags": [
        "φυσική"
      ]
    }
  ],
  "word": "сила"
}