"kırkyılın başı" meaning in Turkish

{
  "etymology_templates": [
    {
      "args": {
        "1": "tr",
        "2": "kırk<gloss:forty>",
        "3": "yıl<gloss:year>",
        "4": "-in<alt:-ın><pos:genitive suffix>",
        "5": "baş<gloss:head, beginning>",
        "6": "-i<alt:-ı><pos:possessive suffix><id:possessive>",
        "lit": "once in/every forty years"
      },
      "expansion": "kırk (“forty”) + yıl (“year”) + -ın (genitive suffix) + baş (“head, beginning”) + -ı (possessive suffix), literally “once in/every forty years”",
      "name": "af"
    }
  ],
  "etymology_text": "From kırk (“forty”) + yıl (“year”) + -ın (genitive suffix) + baş (“head, beginning”) + -ı (possessive suffix), literally “once in/every forty years”.",
  "head_templates": [
    {
      "args": {
        "1": "tr",
        "2": "adverb",
        "head": ""
      },
      "expansion": "kırkyılın başı",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "kırkyılın başı",
      "name": "tr-adv"
    }
  ],
  "hyphenation": [
    "kırk‧yı‧lın‧ba‧şı"
  ],
  "lang": "Turkish",
  "lang_code": "tr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Turkish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Turkish terms suffixed with -i (possessive)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Turkish terms suffixed with -in",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "very rarely, once in a blue moon"
      ],
      "id": "en-kırkyılın_başı-tr-adv-k0Aumr34",
      "links": [
        [
          "rarely",
          "rarely"
        ],
        [
          "once in a blue moon",
          "once in a blue moon"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) very rarely, once in a blue moon"
      ],
      "related": [
        {
          "word": "kırk kere"
        },
        {
          "word": "kırkambar"
        },
        {
          "word": "kırkayak"
        },
        {
          "word": "kırkı çıkmak"
        },
        {
          "word": "kırkmerdiven"
        },
        {
          "word": "kırkyıl"
        },
        {
          "word": "kırkyıllık"
        },
        {
          "word": "yılaşırı"
        },
        {
          "word": "yıldan yıla"
        }
      ],
      "synonyms": [
        {
          "word": "kırkyılda bir"
        },
        {
          "word": "ayda yılda bir"
        },
        {
          "word": "kırk yılın başı"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈkɯɾk.jɯ.ɫɯn.ba.ʃɯ/"
    }
  ],
  "word": "kırkyılın başı"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "tr",
        "2": "kırk<gloss:forty>",
        "3": "yıl<gloss:year>",
        "4": "-in<alt:-ın><pos:genitive suffix>",
        "5": "baş<gloss:head, beginning>",
        "6": "-i<alt:-ı><pos:possessive suffix><id:possessive>",
        "lit": "once in/every forty years"
      },
      "expansion": "kırk (“forty”) + yıl (“year”) + -ın (genitive suffix) + baş (“head, beginning”) + -ı (possessive suffix), literally “once in/every forty years”",
      "name": "af"
    }
  ],
  "etymology_text": "From kırk (“forty”) + yıl (“year”) + -ın (genitive suffix) + baş (“head, beginning”) + -ı (possessive suffix), literally “once in/every forty years”.",
  "head_templates": [
    {
      "args": {
        "1": "tr",
        "2": "adverb",
        "head": ""
      },
      "expansion": "kırkyılın başı",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "kırkyılın başı",
      "name": "tr-adv"
    }
  ],
  "hyphenation": [
    "kırk‧yı‧lın‧ba‧şı"
  ],
  "lang": "Turkish",
  "lang_code": "tr",
  "pos": "adv",
  "related": [
    {
      "word": "kırk kere"
    },
    {
      "word": "kırkambar"
    },
    {
      "word": "kırkayak"
    },
    {
      "word": "kırkı çıkmak"
    },
    {
      "word": "kırkmerdiven"
    },
    {
      "word": "kırkyıl"
    },
    {
      "word": "kırkyıllık"
    },
    {
      "word": "yılaşırı"
    },
    {
      "word": "yıldan yıla"
    }
  ],
  "senses": [
    {
      "categories": [
        "Turkish adverbs",
        "Turkish compound terms",
        "Turkish entries with incorrect language header",
        "Turkish idioms",
        "Turkish lemmas",
        "Turkish multiword terms",
        "Turkish terms suffixed with -i (possessive)",
        "Turkish terms suffixed with -in",
        "Turkish terms with IPA pronunciation"
      ],
      "glosses": [
        "very rarely, once in a blue moon"
      ],
      "links": [
        [
          "rarely",
          "rarely"
        ],
        [
          "once in a blue moon",
          "once in a blue moon"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) very rarely, once in a blue moon"
      ],
      "synonyms": [
        {
          "word": "kırkyılda bir"
        },
        {
          "word": "ayda yılda bir"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈkɯɾk.jɯ.ɫɯn.ba.ʃɯ/"
    }
  ],
  "synonyms": [
    {
      "word": "kırk yılın başı"
    }
  ],
  "word": "kırkyılın başı"
}