While powerful, the 10,000-word list is not a magic bullet. It's important to use it as one tool in a larger toolkit.
It must indicate whether a word is a noun, verb, adjective, or adverb (e.g., present can be a noun, verb, or adjective depending on usage). 10000 most common english words pdf
This tier consists predominantly of functional words and foundational vocabulary. While powerful, the 10,000-word list is not a magic bullet