The BNL Vocabulary Profiler
Based on the most frequent 2709 words in English, the BNL Vocabulary Profiler colour words according to frequency of use: BLUE for very common words, GREEN for frequently used words, and YELLOW for common words. RED words are not very commonly used in general English.

This is an example of the text from the first topic in this course. On the left you see the original text, on the right you see the words, coloured to indicate how common the words are.
Try it out for yourself! Copy some text and paste it into the BNL Vocabulary profiler. The BNL VP is hosted on Tom Cobb's widely acclaimed Lextutor web site, so you need to use Internet Explorer version 6 or higher. This tool is used by professional authors of EFL course books published by mainstream publishers like Pearson. Joan Baker-Gonzalez and Eilen Blau produced the Academic Reading series "World of Reading" using the BNL profiler to help them select the target vocabulary. This very same tool is also available for any EFL teacher to use in their own materials.

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