: Red words are intended for productive use (speaking and writing), whereas "black words" in the dictionary are primarily for receptive understanding (reading and listening).
, they won't find more complex words in the definition. Instead, they will see it explained using the 7,500 words they are already encouraged to learn. This prevents the "circular dictionary" problem, where a user has to look up words within the definition itself. Digital Accessibility and the PDF macmillan 7500 words list pdf
: The list is further categorized into three frequency bands: Understanding the Macmillan 7500 Words List: What It