Never learn a word in isolation. Write out a full sentence that relates to your own life or career.
Reaching C2 (the highest level on the CEFR scale) requires more than just knowing a lot of words. It requires:
Existing in something as a permanent, essential, or characteristic attribute. C2 Level English Vocabulary List Pdf
Use a flashcard app like Anki or Quizlet to test yourself on these terms daily.
A fact that is no longer important or relevant. Never learn a word in isolation
Understanding metaphors that aren't found in standard textbooks.
Choosing the exact word to convey a subtle mood or technical detail. Collocation: Knowing which words naturally "sit" together. It requires: Existing in something as a permanent,
Very attentive to and concerned about accuracy and detail.
To be the deciding factor in a situation. Part and parcel: An essential or basic element.