"руса" meaning in Russian

{
  "etymology_number": 1,
  "forms": [
    {
      "form": "ру́са",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "rúsa",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "adjective form",
        "head": "ру́са"
      },
      "expansion": "ру́са • (rúsa)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adj",
  "senses": [
    {
      "form_of": [
        {
          "extra": "rúsyj",
          "word": "ру́сый"
        }
      ],
      "glosses": [
        "short feminine singular of ру́сый (rúsyj)"
      ],
      "id": "en-руса-ru-adj-T1Qbn3XO",
      "links": [
        [
          "ру́сый",
          "русый#Russian"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "short-form",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈrusə]"
    }
  ],
  "word": "руса"
}

{
  "etymology_number": 2,
  "forms": [
    {
      "form": "ру́са",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "rúsa",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "noun form",
        "g": "m-an",
        "head": "ру́са"
      },
      "expansion": "ру́са • (rúsa) m anim",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "34 66",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "7 93",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "22 78",
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "extra": "rus",
          "word": "рус"
        }
      ],
      "glosses": [
        "genitive/accusative singular of рус (rus)"
      ],
      "id": "en-руса-ru-noun-EUoSXz46",
      "links": [
        [
          "рус",
          "рус#Russian"
        ]
      ],
      "tags": [
        "accusative",
        "form-of",
        "genitive",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈrusə]"
    }
  ],
  "word": "руса"
}

{
  "categories": [
    "Pages with 1 entry",
    "Pages with entries",
    "Russian 2-syllable words",
    "Russian adjective forms",
    "Russian entries with incorrect language header",
    "Russian non-lemma forms",
    "Russian noun forms",
    "Russian terms with IPA pronunciation"
  ],
  "etymology_number": 1,
  "forms": [
    {
      "form": "ру́са",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "rúsa",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "adjective form",
        "head": "ру́са"
      },
      "expansion": "ру́са • (rúsa)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "adj",
  "senses": [
    {
      "form_of": [
        {
          "extra": "rúsyj",
          "word": "ру́сый"
        }
      ],
      "glosses": [
        "short feminine singular of ру́сый (rúsyj)"
      ],
      "links": [
        [
          "ру́сый",
          "русый#Russian"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "short-form",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈrusə]"
    }
  ],
  "word": "руса"
}

{
  "categories": [
    "Pages with 1 entry",
    "Pages with entries",
    "Russian 2-syllable words",
    "Russian entries with incorrect language header",
    "Russian non-lemma forms",
    "Russian noun forms",
    "Russian terms with IPA pronunciation"
  ],
  "etymology_number": 2,
  "forms": [
    {
      "form": "ру́са",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "rúsa",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "noun form",
        "g": "m-an",
        "head": "ру́са"
      },
      "expansion": "ру́са • (rúsa) m anim",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "extra": "rus",
          "word": "рус"
        }
      ],
      "glosses": [
        "genitive/accusative singular of рус (rus)"
      ],
      "links": [
        [
          "рус",
          "рус#Russian"
        ]
      ],
      "tags": [
        "accusative",
        "form-of",
        "genitive",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈrusə]"
    }
  ],
  "word": "руса"
}