"Φ΄" meaning in Greek

{
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "numeral",
        "tr": "-"
      },
      "expansion": "Φ΄",
      "name": "head"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Greek entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "Greek numeral symbols",
          "parents": [
            "Numeral symbols",
            "Symbols",
            "Letters, symbols, and punctuation",
            "Orthography",
            "Writing",
            "Human behaviour",
            "Language",
            "Human",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The Greek numeral representing the number five hundred (500); typically romanized as the Roman numeral D."
      ],
      "id": "en-Φ΄-el-num-m-NiaDi9",
      "links": [
        [
          "Greek numeral",
          "Greek numeral"
        ],
        [
          "five hundred",
          "five hundred"
        ],
        [
          "500",
          "500"
        ],
        [
          "romanize",
          "romanize"
        ],
        [
          "Roman numeral",
          "Roman numeral"
        ],
        [
          "D",
          "D"
        ]
      ],
      "related": [
        {
          "english": "five hundred",
          "roman": "pentakósia",
          "word": "πεντακόσια"
        },
        {
          "english": "five hundredth",
          "roman": "pentakosiostós",
          "word": "πεντακοσιοστός"
        }
      ],
      "synonyms": [
        {
          "tags": [
            "nonstandard"
          ],
          "word": "φ΄"
        }
      ],
      "wikipedia": [
        "Greek numerals"
      ]
    }
  ],
  "word": "Φ΄"
}

{
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "numeral",
        "tr": "-"
      },
      "expansion": "Φ΄",
      "name": "head"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "num",
  "related": [
    {
      "english": "five hundred",
      "roman": "pentakósia",
      "word": "πεντακόσια"
    },
    {
      "english": "five hundredth",
      "roman": "pentakosiostós",
      "word": "πεντακοσιοστός"
    }
  ],
  "senses": [
    {
      "categories": [
        "Greek entries with incorrect language header",
        "Greek entries with language name categories using raw markup",
        "Greek lemmas",
        "Greek numeral symbols",
        "Greek numerals"
      ],
      "glosses": [
        "The Greek numeral representing the number five hundred (500); typically romanized as the Roman numeral D."
      ],
      "links": [
        [
          "Greek numeral",
          "Greek numeral"
        ],
        [
          "five hundred",
          "five hundred"
        ],
        [
          "500",
          "500"
        ],
        [
          "romanize",
          "romanize"
        ],
        [
          "Roman numeral",
          "Roman numeral"
        ],
        [
          "D",
          "D"
        ]
      ],
      "wikipedia": [
        "Greek numerals"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "nonstandard"
      ],
      "word": "φ΄"
    }
  ],
  "word": "Φ΄"
}