Fluency Does Not Equal Proficiency
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[32] Fluency Does Not Equal Proficiency

  • People often confuse the terms “fluency” and “proficiency” and use them synonymously.
  • Asking people “how many languages are you fluent in?” is difficult to answer because it has such a muddy definition and people often mean to say ‘proficient’.
  • ‘Proficiency’ refers directly to your skill level.
  • ‘Fluency’ literally refers to the speed and flow of what comes out of your mouth as you speak.
  • My original definition of fluency is ‘being able to use your target language to acquire more target language’ but my thinking has evolved on this point.
  • These days I use ‘fluency’ to refer to the flow of your speaking and reserve ‘proficiency’ for skill.
  • Fluency and proficiency can overlap.
  • You can be highly proficient but have poor fluency on topics that you’re unfamiliar with.

Related blog post:

I wrote in detail about the difference between proficiency and fluency here.


For spoken fluency training, I highly recommend Glossika.

Fluency Does Not Equal Proficiency
"The limits of my language mean the limits of my world."
- Ludwig Wittgenstein
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