"бук" meaning in Yakut

{
  "etymology_templates": [
    {
      "args": {
        "1": "sah",
        "2": "ru",
        "3": "бук"
      },
      "expansion": "Borrowed from Russian бук (buk)",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from Russian бук (buk).",
  "forms": [
    {
      "form": "buk",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sah",
        "2": "noun",
        "head": "",
        "tr": ""
      },
      "expansion": "бук • (buk)",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "бук • (buk)",
      "name": "sah-noun"
    }
  ],
  "lang": "Yakut",
  "lang_code": "sah",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 5 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Yakut entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "sah",
          "name": "Trees",
          "orig": "sah:Trees",
          "parents": [
            "Plants",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "beech"
      ],
      "id": "en-бук-sah-noun-hW83h~I7",
      "links": [
        [
          "beech",
          "beech"
        ]
      ]
    }
  ],
  "word": "бук"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "sah",
        "2": "ru",
        "3": "бук"
      },
      "expansion": "Borrowed from Russian бук (buk)",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from Russian бук (buk).",
  "forms": [
    {
      "form": "buk",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sah",
        "2": "noun",
        "head": "",
        "tr": ""
      },
      "expansion": "бук • (buk)",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "бук • (buk)",
      "name": "sah-noun"
    }
  ],
  "lang": "Yakut",
  "lang_code": "sah",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 5 entries",
        "Pages with entries",
        "Yakut entries with incorrect language header",
        "Yakut lemmas",
        "Yakut nouns",
        "Yakut terms borrowed from Russian",
        "Yakut terms derived from Russian",
        "sah:Trees"
      ],
      "glosses": [
        "beech"
      ],
      "links": [
        [
          "beech",
          "beech"
        ]
      ]
    }
  ],
  "word": "бук"
}