Word.ws English Dictionary

2FA

2FA is the initialism of two-factor authentication.

Meaning of two-factor authentication

Noun

two-factor authentication (uncountable)

  1. (computer security) An identity and access management security method in which users provide two different authentication factors to verify themselves: first the user's password and then a (randomly generated and frequently changing) code generated by an app.
    Synonyms:
    2FA

Questions about 2FA

What is 2FA the initialism of?
2FA is the initialism of two-factor authentication.

Words near 2FA in the dictionary

  1. 2day
  2. 2dly
  3. 2DM
  4. 2DR
  5. 2e
  6. 2FA
  7. 2faced
  8. 2fold
  9. 2G
  10. 2gether
  11. 2GL

Source and license

Adapted from Wiktionary: 2FA (page history and authors); two-factor authentication (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “2FA.” Word.ws, https://word.ws/2fa. Based on Wiktionary, CC BY-SA 4.0.