This document provides vocabulary to describe problems in IELTS essays. It lists synonyms for "problem" such as difficulty, question, and issue. It also gives examples of adjective-noun combinations to describe problems accurately, such as "significant problem", "fundamental problem", and "pressing problem". Finally, it offers verb alternatives like "address", "face", "deal with", "tackle", "experience", "pose", and "resolve" to discuss problems in a more academic way. The vocabulary is intended to help writers discuss problems effectively in IELTS essays.