Vocabulary Trainer
Move useful words from recognition into natural exam writing through meaning, collocation, sentence practice, paragraph transfer, and spaced review.
Build vocabulary that fits the sentence, paragraph, and exam task.
The starting level is not an exam score, and the learning track is not an official CEFR conversion.
substantiate
C1 · verbsupport a claim with evidence or facts
Feature walkthrough
See Vocabulary Trainer from start to result
Read the video transcript
Recognising an advanced word is different from using it naturally. Vocabulary Trainer begins with your Cambridge target and an optional 12-word check, then builds a B2, C1, or C2 learning track. Short exercises move each word through meaning, natural collocation, word form, controlled sentence use, free production, and paragraph transfer. Feedback checks whether the meaning fits and whether the word partners sound natural. Successful words return after 1, 3, 7, 14, and 30 days, when retrieval is useful again. Your profile records four stages—Recognise, Recall, Use, and Natural use. The starting level is not an exam score, and the track is not an official CEFR conversion. This practical sequence turns useful vocabulary into language you can retrieve in a Cambridge writing task.
How it works
Four steps from starting point to useful practice
- 1
Recognise the meaning
- 2
Recall the collocation
- 3
Use it in a sentence
- 4
Transfer it to a paragraph
What it changes
Useful details at the point you need them
The feature keeps the task, feedback, and next action connected, so you can see what to do rather than file away another score.
B2, C1, and C2 learning tracks
Use a short starting check to choose a practical track.
Natural collocation practice
Learn the word partners that make advanced vocabulary sound natural.
Spaced writing transfer
Bring successful words back after 1, 3, 7, 14, and 30 days.
Practice context
The starting level is not an exam score, and the learning track is not an official CEFR conversion. Cambridge Writing Checker is independent and is not affiliated with or endorsed by Cambridge University Press & Assessment.
Continue exploring
Feature guide
Exam-Format Practice
Choose B2 First, C1 Advanced, or C2 Proficiency, then set the task type and write with the complete prompt and correct word-range guidance in view.
Read the guideFeature guide
Instant AI Analysis
Submit the task and response together for a structured review of Content, Communicative Achievement, Organisation, and Language.
Read the guideFeature guide
Cambridge Scoring
Use a practice Cambridge English Scale estimate as a summary, then open the criterion scores and rationale beneath it.
Read the guidePut Vocabulary Trainer into your next practice session
Start with one complete evaluation free. No card required.