Fluency in reading is defined as the ability to read text:

Fluency in reading encompasses the ability to read text quickly, accurately, and with proper expression. This definition captures the essence of fluency, which is crucial for effective reading comprehension. When a reader is fluent, they are not only able to recognize words quickly but also can group words into meaningful phrases, leading to better understanding of the text's meaning. Proper expression involves the appropriate use of intonation and rhythm, making the reading sound natural and enhancing comprehension for both the reader and their audience.

The focus on speed and accuracy emphasizes that fluency is not simply about how loud or expressive one can be but rather about reading with a smooth flow that allows for comprehension. While having a large vocabulary can contribute to reading proficiency, it alone does not ensure fluency. Similarly, being able to read in a loud voice does not equate to fluency, as reading too loudly may hinder expression and comprehension. Finally, while paraphrasing is an important reading strategy, it is not a direct indicator of fluency in reading. Thus, the chosen definition effectively reflects the comprehensive nature of reading fluency.