"birer birer" meaning in Turkish

{
  "etymology_templates": [
    {
      "args": {
        "1": "tr",
        "2": "birer"
      },
      "expansion": "Reduplication of birer",
      "name": "reduplication"
    }
  ],
  "etymology_text": "Reduplication of birer.",
  "head_templates": [
    {
      "args": {
        "1": "tr",
        "2": "adverb"
      },
      "expansion": "birer birer",
      "name": "head"
    }
  ],
  "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 reduplications",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Would the sky be forgotten?\nWould I lose the beautiful face of yours?\nOne by one, what remains for me?\nEven if I look back",
          "ref": "2007, Hayko Cepkin (lyrics and music), “Ölüyorum [I'm Dying]”, in Tanışma Bitti [The Acquaintance Is Over], performed by Hayko Cepkin",
          "roman": "Geriye baksam da",
          "text": "Unutulur mu gökyüzü?\nYitirir miyim o gül yüzünü?\nBirer birer, neyim kalır?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "one by one"
      ],
      "id": "en-birer_birer-tr-adv-O8LGRHcm",
      "links": [
        [
          "one by one",
          "one by one"
        ]
      ]
    }
  ],
  "word": "birer birer"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "tr",
        "2": "birer"
      },
      "expansion": "Reduplication of birer",
      "name": "reduplication"
    }
  ],
  "etymology_text": "Reduplication of birer.",
  "head_templates": [
    {
      "args": {
        "1": "tr",
        "2": "adverb"
      },
      "expansion": "birer birer",
      "name": "head"
    }
  ],
  "lang": "Turkish",
  "lang_code": "tr",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Turkish adverbs",
        "Turkish entries with incorrect language header",
        "Turkish lemmas",
        "Turkish multiword terms",
        "Turkish reduplications",
        "Turkish terms with quotations"
      ],
      "examples": [
        {
          "english": "Would the sky be forgotten?\nWould I lose the beautiful face of yours?\nOne by one, what remains for me?\nEven if I look back",
          "ref": "2007, Hayko Cepkin (lyrics and music), “Ölüyorum [I'm Dying]”, in Tanışma Bitti [The Acquaintance Is Over], performed by Hayko Cepkin",
          "roman": "Geriye baksam da",
          "text": "Unutulur mu gökyüzü?\nYitirir miyim o gül yüzünü?\nBirer birer, neyim kalır?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "one by one"
      ],
      "links": [
        [
          "one by one",
          "one by one"
        ]
      ]
    }
  ],
  "word": "birer birer"
}