Part of our DELF series
This guide focuses on the vocabulary bands DELF B2 examiners test. For the full exam structure, scoring, and how to choose your level, see our DELF & DALF exam guide.
Why Vocabulary Defines DELF B2
DELF B2 is the level where recognition is no longer enough. At B1, you can pass largely by understanding familiar words in context and producing simple, correct sentences. At B2, examiners test nuance — the ability to argue, qualify, hypothesise, and shift register. That requires vocabulary depth: not just more words, but more precise words, and more ways to connect them.
The four skills each reward a different vocabulary layer. Listening and reading reward fast receptive recognition. Writing and speaking reward productive precision and range. A candidate with 5,000 passively recognised words but only 1,500 actively produced will pass listening and reading and struggle on writing and speaking — and because DELF B2 requires a minimum of 5/25 in each skill, that imbalance is exactly how candidates fail.
What Changes from B1 to B2 Vocabulary
Notice the pattern: B2 is not "harder words" — it is register. The same meanings get expressed in formal, argumentative, and abstract vocabulary rather than everyday vocabulary. This is why broad reading of French opinion writing (Le Monde editorials, Courrier International) is the fastest B2 vocabulary builder.
The Vocabulary Bands by Skill
Each of the four DELF B2 skills rewards a distinct vocabulary band. Prepare them separately — a candidate who only drills general topic vocabulary misses the connector and argumentation bands that lift writing and speaking into the pass zone.
Listening — fast recognition vocabulary
The listening paper (~30 min) uses authentic recordings at near-natural pace. The vocabulary that matters is transition and stance language — words that signal a speaker is about to contrast, concede, or conclude. Recognising these in real time is what lets you follow the argument, not just catch isolated words.
Reading — argument and reference vocabulary
Reading texts at B2 are argumentative articles. The vocabulary that costs marks is anaphoric reference — words like celui-ci, ce dernier, le premier that refer back to something earlier. A B1 reader loses the thread; a B2 reader tracks the reference.
Writing — argumentation and register vocabulary
The written task rewards structured argumentation with formal connectors and precise opinion verbs. The biggest B2 writing upgrade is replacing je pense que / parce que with a small bank of formal alternatives.
Speaking — interaction and stance vocabulary
The speaking exam rewards interactive fluency: agreeing, disagreeing, building on the examiner's points, and signalling nuance. These are fixed phrases you can prepare in advance — and they make a B1-sounding speaker sound B2.
Topic Vocabulary by DELF B2 Theme
DELF B2 tasks draw from recurring themes — work and education, environment, technology, society, health, and culture. Within each, examiners look for topic-specific precision vocabulary rather than general discussion words. Here are the highest-value terms per theme.
Don't memorise lists — memorise collocations
DELF B2 writing rewards collocational accuracy — using words in the combinations French speakers actually use. "Prendre une décision" is natural; "faire une décision" is not. When you learn a topic word, learn one or two of its common collocations at the same time. Ten well-placed collocations outscore thirty isolated words.
How to Prepare the Vocabulary Efficiently
The most efficient DELF B2 vocabulary sequence is the same one that works for IB and A-Level: build receptive breadth first through reading and listening, then convert the most useful words into productive use through weekly writing.
The Lingaso app organises French vocabulary by CEFR level and theme — exactly the structure that feeds the receptive papers and gives you the raw material to upgrade your productive register. Pair it with the Writing Analyser to check whether your practice paragraphs actually read at B2.
FAQ
How many words do I need for DELF B2?
There is no official word count. A practical target is roughly 4,000–5,000 word families for confident B2, with wider passive recognition for reading and listening. More important than the total is register balance: formal connectors, argumentation verbs, and topic-specific terms must all be present, or you risk failing a skill despite a large total vocabulary.
Is DELF B2 vocabulary the same as IB French B HL vocabulary?
Largely overlapping. Both target CEFR B2 and reward formal register, argumentation, and complex connectors. A candidate preparing for one is most of the way to the other. The main difference is task type: DELF B2 has more standalone argumentative writing; IB rewards text-type accuracy across formats.
Should I learn synonyms for every word?
No — that is inefficient. Prioritise synonyms for your 50–100 most-used words in writing and speaking, and for the abstract concepts DELF B2 favours (problems, causes, solutions, opinions). Depth on high-frequency words beats shallow coverage of rare ones.