"alpine fir" meaning in English

{
  "forms": [
    {
      "form": "alpine firs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "alpine fir (plural alpine firs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Yiddish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Pines",
          "orig": "en:Pines",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A fir tree of species Abies lasiocarpa"
      ],
      "id": "en-alpine_fir-en-noun-dP6Q9ML3",
      "synonyms": [
        {
          "word": "Rocky Mountain fir"
        },
        {
          "word": "subalpine fir"
        }
      ],
      "translations": [
        {
          "code": "yi",
          "lang": "Yiddish",
          "lang_code": "yi",
          "roman": "pukhshishke-yodle",
          "sense": "Translations",
          "tags": [
            "feminine"
          ],
          "word": "פּוכשישקע־יאָדלע"
        }
      ]
    }
  ],
  "word": "alpine fir"
}

{
  "forms": [
    {
      "form": "alpine firs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "alpine fir (plural alpine firs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries using missing taxonomic name (species)",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Yiddish translations",
        "Translation table header lacks gloss",
        "en:Pines"
      ],
      "glosses": [
        "A fir tree of species Abies lasiocarpa"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Rocky Mountain fir"
    },
    {
      "word": "subalpine fir"
    }
  ],
  "translations": [
    {
      "code": "yi",
      "lang": "Yiddish",
      "lang_code": "yi",
      "roman": "pukhshishke-yodle",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "פּוכשישקע־יאָדלע"
    }
  ],
  "word": "alpine fir"
}