"2FA" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "word": "two-factor authentication"
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        {
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          "langcode": "en",
          "name": "Computer security",
          "orig": "en:Computer security",
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            "Fundamental"
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      "glosses": [
        "Initialism of two-factor authentication."
      ],
      "id": "en-2FA-en-noun-1kKQCCrt",
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          "computer security",
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          "two-factor authentication",
          "two-factor authentication#English"
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      "qualifier": "computer security",
      "raw_glosses": [
        "(computer security) Initialism of two-factor authentication."
      ],
      "related": [
        {
          "word": "U2F"
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  "word": "2FA"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "U2F"
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  "senses": [
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      "alt_of": [
        {
          "word": "two-factor authentication"
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        "Initialism of two-factor authentication."
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          "two-factor authentication",
          "two-factor authentication#English"
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        "(computer security) Initialism of two-factor authentication."
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  "word": "2FA"
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