FCE Vocabulary: How Many Words B2 First Really Needs
The first question every B2 First candidate asks is how many words they need. There is no official answer, because Cambridge publishes no word list for this exam, and the useful answer is not a number anyway. It is which words, known how well.
Cambridge does not publish a vocabulary list for B2 First. That is a deliberate choice rather than an omission: the exam is built to reward general command of the language at that level, and a published list would turn it into a memorisation task.
The number usually quoted for B2 is somewhere around four thousand word families, and it is worth treating as a rough sense of scale rather than a target. The guide on how many words each CEFR level takes goes into where those numbers come from and how much they can be trusted.
Where the exam actually tests vocabulary
Four papers, and vocabulary is assessed differently in each. Knowing which part measures what is what turns preparation from general study into targeted work.
| Paper | What it asks | What it is really measuring |
|---|---|---|
| Reading and Use of English, Part 1 | Multiple-choice cloze | Collocation and the difference between near-synonyms |
| Part 2 | Open cloze, no options given | Grammatical words, prepositions and fixed phrases |
| Part 3 | Word formation from a given root | Whether you own the word family, not just the root |
| Part 4 | Key word transformations | Fixed expressions and verb patterns |
| Writing | An essay plus one other task | Range used accurately, and the right register for the task |
| Listening and Speaking | Four parts each | Recognition at speed, and fluency rather than rare words |
The four areas where preparation pays
Vocabulary study for this exam is not open-ended. Four areas account for most of the marks that are winnable through preparation, and all four are finite.
| Area | Why it pays | Example |
|---|---|---|
| Word families | Part 3 is eight marks of pure word formation | success, succeed, successful, unsuccessful, successfully |
| Phrasal verbs | Appear across Parts 1, 2 and 4, and in speaking | put off, look into, get on with, run out of |
| Dependent prepositions | Part 2 is full of them and they cannot be guessed | good at, interested in, depend on, apologise for |
| Collocation | Part 1 gives four synonyms and one right pairing | make a decision, do the washing up, take a break |
Word formation, which is the single densest area
Part 3 gives a root word and a gap, and asks for the form the sentence needs. Eight items, and the skill behind them is completely learnable, which is unusual in a language exam.
The unit is the family. Knowing decide is not enough; the exam wants decision, decisive, indecisive and decisively. Knowing succeed is not enough; it wants success, successful, unsuccessful and successfully. Add the negative prefix and the adverb every time you learn a word, because those are the two forms candidates most often lack.
Negative prefixes are chosen by history, not by rule. Unhappy, impossible, irregular, illegal, disagree and misunderstand all mean not, and they are not interchangeable. The only useful tendency is phonetic: im- before p, b and m, ir- before r, il- before l. Everything else has to be learned per word.
Phrasal verbs and prepositions, the two that cannot be reasoned out
These are where B2 First separates candidates who have read widely from those who have studied grammar. Neither can be derived. You are good at something and interested in something, and no logic will tell you why. Put off means postpone, and its parts tell you nothing.
Both come up in Part 2 in particular, where nothing is offered and you have to supply the missing word yourself. A missing preposition in an open cloze is a mark lost with no way to work it out in the room.
The efficient approach is to learn them in topic groups inside real sentences, rather than as alphabetical lists. The five mistakes that separate B1 from B2 covers several of the pairings that come up most.
Writing: range, used accurately
The mark scheme rewards range, and candidates consistently read that as an invitation to use difficult words. It is not. A rare word used slightly wrong loses more than a common word used precisely, because inaccuracy is penalised directly and rarity is not rewarded on its own.
What genuinely lifts a writing score at this level is a reliable set of linking phrases, an appropriate register for the task type, and accurate collocation. Those are learnable in a week and they appear in every single answer you will write.
The one thing worth memorising outright is a phrase bank: introducing an opinion, adding a point, contrasting, giving an example, concluding. Five or six phrases in each group is enough, and having them ready frees attention for content.
How to study, and how not to
The counting instinct is the thing to resist. Four thousand words known shallowly performs worse on this exam than two thousand known properly, because every paper except Listening asks you to produce or select rather than merely recognise.
Past papers are the most efficient study material rather than only a measurement, for one specific reason: every item you get wrong names something you do not own. A missed Part 3 item is a word family. A missed Part 2 item is usually a preposition or a fixed phrase. Those two lists, built from your own mistakes, are worth more than any general vocabulary list.
- Store the family, not the root. Add the negative and the adverb every time.
- Store prepositions attached to their word: not depend, but depend on the weather.
- Learn phrasal verbs in topic groups, inside sentences.
- Build a writing phrase bank. It is small, finite, and used in every answer.
- Treat every wrong past-paper item as an item to review, not as a score.
Where MindDory fits
Exam preparation runs for months, which is exactly the timescale on which unreviewed items disappear. The awkward part is that the items worth keeping are not single words: they are families, pairings and phrases, each with a sentence attached. MindDory holds them in that shape and returns each one when it is closest to slipping rather than when you last added it.
The free FCE vocabulary list is a sensible starting point, and the broader B2 English vocabulary list covers the same level without the exam framing. Either works better as a diagnostic than as a syllabus: the entries you recognise but could not build a family from are the work.