"пешчењак" meaning in Serbo-Croatian

{
  "etymology_text": "From пе́сак.",
  "forms": [
    {
      "form": "пешчѐња̄к",
      "tags": [
        "canonical",
        "masculine"
      ]
    },
    {
      "form": "peščènjāk",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "m",
        "head": "пешчѐња̄к"
      },
      "expansion": "пешчѐња̄к m (Latin spelling peščènjāk)",
      "name": "sh-noun"
    }
  ],
  "hyphenation": [
    "пеш‧че‧њак"
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Serbo-Croatian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "sand rock, sandstone"
      ],
      "id": "en-пешчењак-sh-noun-CncZpEIg",
      "links": [
        [
          "sandstone",
          "sandstone"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "Ijekavian"
          ],
          "word": "пјешчѐња̄к"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/peʃt͡ʃěɲaːk/"
    }
  ],
  "word": "пешчењак"
}

{
  "etymology_text": "From пе́сак.",
  "forms": [
    {
      "form": "пешчѐња̄к",
      "tags": [
        "canonical",
        "masculine"
      ]
    },
    {
      "form": "peščènjāk",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "m",
        "head": "пешчѐња̄к"
      },
      "expansion": "пешчѐња̄к m (Latin spelling peščènjāk)",
      "name": "sh-noun"
    }
  ],
  "hyphenation": [
    "пеш‧че‧њак"
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Serbo-Croatian entries with incorrect language header",
        "Serbo-Croatian lemmas",
        "Serbo-Croatian masculine nouns",
        "Serbo-Croatian nouns",
        "Serbo-Croatian terms with IPA pronunciation"
      ],
      "glosses": [
        "sand rock, sandstone"
      ],
      "links": [
        [
          "sandstone",
          "sandstone"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/peʃt͡ʃěɲaːk/"
    }
  ],
  "synonyms": [
    {
      "tags": [
        "Ijekavian"
      ],
      "word": "пјешчѐња̄к"
    }
  ],
  "word": "пешчењак"
}