VOCABULARY BUILDER
Learn 6,000+ useful English words with quick, repeated practice.
THE IELTS VOCABULARY BUILDER, EXPLAINED
Inside the portal, the Vocabulary Builder turns every word you meet into a word you keep.
Dictionary lookup
Look up any word and get its meaning right away — then save it with one tap.
Personal word bank
Every word you save lands in your own word bank, so your vocabulary list is about your gaps, not a generic list.
Word packs
Ready-made packs of words to study when you want new material, not just review.
Practice drills & word sorting
Practise your saved words with drills, and sort and organise them the way that helps you think.
CEFR levels from A1 to C2
See your vocabulary broken down by CEFR level, so you know exactly where you stand and what to learn next.
Spaced repetition that tracks mastery
Words move through four stages — new, learning, review, mastered — and a daily review queue tells you which words to practise today.
present, appearing, or found everywhere
“Smartphones have become ubiquitous in modern life.”
to make something less harmful or severe
“New rules were brought in to mitigate the risk.”
showing careful and persistent effort
“She was diligent in checking every answer.”
to make something less harmful or severe
verbCOMMON QUESTIONS
What is the IELTS Vocabulary Builder?+
It is the vocabulary system inside PrepRoadRunner: a dictionary lookup, a personal word bank for saved words, ready-made word packs, practice drills, word sorting, and a CEFR level breakdown from A1 to C2.
How does the spaced repetition work?+
Each word moves through mastery stages — new, learning, review, and mastered. A daily review queue schedules the words you need to practise today, so review time goes where it matters.
What are CEFR levels?+
CEFR is the common European scale for language ability, from A1 (beginner) to C2 (mastery). The Vocabulary Builder shows your words broken down by CEFR level so you can see your vocabulary range grow.
Can I save words I find while reading?+
Yes. Look up a word — for example while reading a novel in Novel Nook — and save it to your word bank. It then enters your spaced-repetition review queue like any other word.
Is the Vocabulary Builder free to try?+
Yes. You can start on the Free plan. A card is required at signup to prevent abuse, but you are never charged on the Free plan.
KEEP EXPLORING
BUILD A WORD BANK THAT STICKS
Save your first words today and let spaced repetition carry them to mastered.
A card is required at signup to prevent abuse. You are never charged on the Free plan.