Fluency refers to the ability to express oneself easily and articulately in a language. It involves not just speaking quickly, but also using correct grammar, vocabulary, and pronunciation. A fluent speaker can communicate thoughts clearly and understand others without significant effort. In addition to language, fluency can apply to other skills, such as reading or writing. For instance, a fluent reader can comprehend text smoothly and efficiently, while a fluent writer can produce coherent and well-structured sentences. Overall, fluency indicates a high level of proficiency and comfort in a particular skill or language.