"ро" meaning in Russian

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "grc",
        "3": "ῥῶ"
      },
      "expansion": "Borrowed from Ancient Greek ῥῶ (rhô)",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from Ancient Greek ῥῶ (rhô).",
  "forms": [
    {
      "form": "ro",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ро",
        "2": "n-in",
        "3": "-"
      },
      "expansion": "ро • (ro) n inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ru",
          "name": "Greek letter names",
          "orig": "ru:Greek letter names",
          "parents": [
            "Letter names",
            "Letters, symbols, and punctuation",
            "Names",
            "Orthography",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Writing",
            "Fundamental",
            "Nouns",
            "Human behaviour",
            "Language",
            "Lemmas",
            "Human",
            "Communication"
          ],
          "source": "w"
        },
        {
          "_dis": "35 29 15 10 9 2 1",
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "31 26 19 12 11 1 0",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "rho (the Greek letter Ρ/ρ)"
      ],
      "id": "en-ро-ru-noun-8uGbiI-s",
      "links": [
        [
          "rho",
          "rho"
        ],
        [
          "Ρ",
          "Ρ#English"
        ],
        [
          "ρ",
          "ρ#English"
        ]
      ],
      "tags": [
        "indeclinable"
      ],
      "wikipedia": [
        "ru:ро"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ro]"
    }
  ],
  "word": "ро"
}

{
  "categories": [
    "Pages with 3 entries",
    "Pages with entries"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "grc",
        "3": "ῥῶ"
      },
      "expansion": "Borrowed from Ancient Greek ῥῶ (rhô)",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from Ancient Greek ῥῶ (rhô).",
  "forms": [
    {
      "form": "ro",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ро",
        "2": "n-in",
        "3": "-"
      },
      "expansion": "ро • (ro) n inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 3 entries",
        "Pages with entries",
        "Russian 1-syllable words",
        "Russian entries with incorrect language header",
        "Russian inanimate nouns",
        "Russian indeclinable nouns",
        "Russian lemmas",
        "Russian neuter nouns",
        "Russian nouns",
        "Russian terms borrowed from Ancient Greek",
        "Russian terms derived from Ancient Greek",
        "Russian terms with IPA pronunciation",
        "Russian terms with redundant head parameter",
        "ru:Greek letter names"
      ],
      "glosses": [
        "rho (the Greek letter Ρ/ρ)"
      ],
      "links": [
        [
          "rho",
          "rho"
        ],
        [
          "Ρ",
          "Ρ#English"
        ],
        [
          "ρ",
          "ρ#English"
        ]
      ],
      "tags": [
        "indeclinable"
      ],
      "wikipedia": [
        "ru:ро"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ro]"
    }
  ],
  "word": "ро"
}