"February 31" meaning in All languages combined

{
  "head_templates": [
    {
      "args": {},
      "expansion": "February 31",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A non-existent date of the Gregorian calendar, especially in context of having scheduled events that will never occur."
      ],
      "id": "en-February_31-en-name-uHUlNupD",
      "links": [
        [
          "non-existent",
          "non-existent"
        ],
        [
          "Gregorian calendar",
          "Gregorian calendar"
        ],
        [
          "scheduled",
          "scheduled"
        ],
        [
          "never",
          "never"
        ]
      ],
      "synonyms": [
        {
          "word": "February 30"
        },
        {
          "word": "when pigs fly"
        }
      ],
      "wikipedia": [
        "List of non-standard dates"
      ]
    }
  ],
  "word": "February 31"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "February 31",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms spelled with numbers",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A non-existent date of the Gregorian calendar, especially in context of having scheduled events that will never occur."
      ],
      "links": [
        [
          "non-existent",
          "non-existent"
        ],
        [
          "Gregorian calendar",
          "Gregorian calendar"
        ],
        [
          "scheduled",
          "scheduled"
        ],
        [
          "never",
          "never"
        ]
      ],
      "wikipedia": [
        "List of non-standard dates"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "February 30"
    },
    {
      "word": "when pigs fly"
    }
  ],
  "word": "February 31"
}