"pf" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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      "alt_of": [
        {
          "word": "power factor"
        }
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          "kind": "topical",
          "langcode": "en",
          "name": "Electronics",
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      "glosses": [
        "Initialism of power factor."
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      "id": "en-pf-en-noun-pmpSBC90",
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        "(electronics) Initialism of power factor."
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        "natural-sciences",
        "physical-sciences",
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      "glosses": [
        "pff"
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      "id": "en-pf-en-noun-jfY5iehf",
      "links": [
        [
          "pff",
          "pff"
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  "word": "pf"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "word": "power factor"
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        "(electronics) Initialism of power factor."
      ],
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        "alt-of",
        "initialism"
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      "topics": [
        "business",
        "electrical-engineering",
        "electricity",
        "electromagnetism",
        "electronics",
        "energy",
        "engineering",
        "natural-sciences",
        "physical-sciences",
        "physics"
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    {
      "glosses": [
        "pff"
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  "word": "pf"
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