Why vocabulary matters on the 2026 TOEFL
Reading and Listening passages on the TOEFL iBT draw heavily from a recurring set of academic topics: biology, astronomy, psychology, history, economics, linguistics, art, and anthropology. Each topic comes with a specialised vocabulary that students who haven't studied that subject in English may not know. Building topic-by-topic vocabulary is one of the highest-leverage moves in TOEFL prep — most students who plateau between band 4.0 and 5.0 are losing 2-3 points per passage to unfamiliar terms rather than to comprehension or strategy.
How these lists are organised
Each list contains 25 words on a single topic, with four pieces of information per entry: the word and its part of speech, a plain-English definition (no circular dictionary jargon), a TOEFL-style example sentence in academic register, and the most common collocations — the multi-word combinations the test prefers. Studying the collocations is what pushes you from passive recognition to active recall.
A 6-week vocabulary study plan
- Week 1: Pick the two topics most likely to appear in your section practice (start with Biology and Psychology — they're the most frequent).
- Week 2: Add two more lists. Spend 15 minutes daily reviewing all four.
- Week 3: Add the two campus-life lists (Campus Life and Discussion Verbs). These pay back fastest in Speaking and Writing.
- Week 4: Take a full-length practice test and tag every unfamiliar word. Rebuild your study list from those gaps.
- Week 5: Cycle through the four hardest topics for you (every learner has different ones).
- Week 6: Mixed review — alternate practice tests with vocabulary recall sessions.