"olf" meaning in English

{
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "olfactus",
        "4": "",
        "5": "smelled"
      },
      "expansion": "Latin olfactus (“smelled”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Latin olfactus (“smelled”).",
  "forms": [
    {
      "form": "olfs",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "olf",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s",
        "2": "olf"
      },
      "expansion": "olf (plural olfs or olf)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "87 13",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
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          "_dis": "66 34",
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          "langcode": "en",
          "name": "True finches",
          "orig": "en:True finches",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "88 12",
          "kind": "other",
          "langcode": "en",
          "name": "Units of measure",
          "orig": "en:Units of measure",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A unit measuring the strength of an olfactory pollution source as detected by an average adult in typical conditions."
      ],
      "id": "en-olf-en-noun-tBWSaluy",
      "links": [
        [
          "unit",
          "unit"
        ],
        [
          "strength",
          "strength"
        ],
        [
          "olfactory",
          "olfactory"
        ],
        [
          "pollution",
          "pollution"
        ],
        [
          "source",
          "source"
        ]
      ]
    }
  ],
  "wikipedia": [
    "Olf (unit)"
  ],
  "word": "olf"
}

{
  "etymology_number": 2,
  "forms": [
    {
      "form": "olfs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "olf (plural olfs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "The European bullfinch."
      ],
      "id": "en-olf-en-noun-55~SoCRW",
      "links": [
        [
          "bullfinch",
          "bullfinch"
        ]
      ]
    }
  ],
  "word": "olf"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English indeclinable nouns",
    "English lemmas",
    "English nouns",
    "English nouns with irregular plurals",
    "English terms derived from Latin",
    "Pages with 2 entries",
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    "en:True finches",
    "en:Units of measure",
    "zlw-slv:Mythological creatures"
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  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "olfactus",
        "4": "",
        "5": "smelled"
      },
      "expansion": "Latin olfactus (“smelled”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Latin olfactus (“smelled”).",
  "forms": [
    {
      "form": "olfs",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "olf",
      "tags": [
        "plural"
      ]
    }
  ],
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    {
      "args": {
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      "expansion": "olf (plural olfs or olf)",
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    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A unit measuring the strength of an olfactory pollution source as detected by an average adult in typical conditions."
      ],
      "links": [
        [
          "unit",
          "unit"
        ],
        [
          "strength",
          "strength"
        ],
        [
          "olfactory",
          "olfactory"
        ],
        [
          "pollution",
          "pollution"
        ],
        [
          "source",
          "source"
        ]
      ]
    }
  ],
  "wikipedia": [
    "Olf (unit)"
  ],
  "word": "olf"
}

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  "categories": [
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    "English entries with incorrect language header",
    "English lemmas",
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    "en:Units of measure",
    "zlw-slv:Mythological creatures"
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  "etymology_number": 2,
  "forms": [
    {
      "form": "olfs",
      "tags": [
        "plural"
      ]
    }
  ],
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      "args": {},
      "expansion": "olf (plural olfs)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "The European bullfinch."
      ],
      "links": [
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          "bullfinch",
          "bullfinch"
        ]
      ]
    }
  ],
  "word": "olf"
}