"rho" meaning in Spanish

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "grc",
        "3": "ῥῶ"
      },
      "expansion": "Borrowed from Ancient Greek ῥῶ (rhô)",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from Ancient Greek ῥῶ (rhô).",
  "forms": [
    {
      "form": "rhos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "rho f (plural rhos)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "rho"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 7 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish nouns with irregular gender",
          "parents": [
            "Nouns with irregular gender",
            "Irregular nouns",
            "Nouns by inflection type",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "es",
          "name": "Greek letter names",
          "orig": "es: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": "14 15 2 4 19 22 21 1 2",
          "kind": "other",
          "name": "Pages with 7 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "14 15 2 5 19 22 21 1 2",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "rho; the Greek letter Ρ, ρ"
      ],
      "id": "en-rho-es-noun-pabAve0K",
      "links": [
        [
          "rho",
          "rho#English"
        ],
        [
          "Ρ",
          "Ρ"
        ],
        [
          "ρ",
          "ρ"
        ]
      ],
      "synonyms": [
        {
          "word": "ro"
        }
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈro/"
    },
    {
      "ipa": "[ˈro]"
    },
    {
      "rhymes": "-o"
    }
  ],
  "word": "rho"
}

{
  "categories": [
    "Pages with 7 entries",
    "Pages with entries"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "grc",
        "3": "ῥῶ"
      },
      "expansion": "Borrowed from Ancient Greek ῥῶ (rhô)",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from Ancient Greek ῥῶ (rhô).",
  "forms": [
    {
      "form": "rhos",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "rho f (plural rhos)",
      "name": "es-noun"
    }
  ],
  "hyphenation": [
    "rho"
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 7 entries",
        "Pages with entries",
        "Rhymes:Spanish/o",
        "Rhymes:Spanish/o/1 syllable",
        "Spanish 1-syllable words",
        "Spanish countable nouns",
        "Spanish entries with incorrect language header",
        "Spanish feminine nouns",
        "Spanish lemmas",
        "Spanish nouns",
        "Spanish nouns with irregular gender",
        "Spanish terms borrowed from Ancient Greek",
        "Spanish terms derived from Ancient Greek",
        "Spanish terms with IPA pronunciation",
        "es:Greek letter names"
      ],
      "glosses": [
        "rho; the Greek letter Ρ, ρ"
      ],
      "links": [
        [
          "rho",
          "rho#English"
        ],
        [
          "Ρ",
          "Ρ"
        ],
        [
          "ρ",
          "ρ"
        ]
      ],
      "synonyms": [
        {
          "word": "ro"
        }
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈro/"
    },
    {
      "ipa": "[ˈro]"
    },
    {
      "rhymes": "-o"
    }
  ],
  "word": "rho"
}