Free English Vocabulary Test
How many English words do you know? Take our 25-question vocabulary size test to find out. Choose the correct definition for each word and get an estimated vocabulary size.
What is your English vocabulary size?
This test uses word recognition to estimate how many English words you know. For each question, choose the definition that best matches the word. There is no time limit.
- 25 words from A2 to C1 level
- Choose the correct definition
- Get an estimated vocabulary size
- Instant results, no sign-up
What does this word mean?
Estimated Vocabulary Size
Strong Vocabulary
You correctly identified 20 out of 25 words.
Vocabulary Size Scale
Vocabulary Test — FAQ
The test presents 25 words and asks you to choose the correct definition from four options. Based on your score, it estimates your total passive vocabulary size — the number of English words you can recognise and understand.
The estimate is a broad indicator rather than a precise count. It is based on correlations between recognition of advanced vocabulary and overall vocabulary size established in language research. Treat it as a helpful benchmark rather than an exact figure.
Research suggests you need about 2,000 words for basic conversation, 5,000 for comfortable reading, and 8,000–10,000 for near-native fluency. Academic texts typically require around 8,000–9,000 word families. Native English speakers typically know 20,000–35,000 words.
Passive vocabulary includes words you can recognise and understand when reading or listening. Active vocabulary includes words you can use correctly when speaking or writing. Your passive vocabulary is typically two to three times larger than your active vocabulary.
Studies estimate that educated native English speakers know between 20,000 and 35,000 word families. However, for functional fluency in most everyday contexts, 8,000–10,000 words is sufficient.
For IELTS Band 6–7, you need around 6,000–8,000 words. For Band 8+, a vocabulary of 10,000+ words is recommended. This test focuses on the kind of academic and advanced vocabulary that frequently appears in IELTS reading and writing tasks.
The most effective methods are: reading widely in English, using spaced repetition flashcards, learning words in context rather than isolation, and actively using new words in writing and speaking. LexFizz's flash cards and exercises can help.
No. The test runs entirely in your browser with no account or sign-up needed. Results are shown instantly and stored only on your device.
The words range from A2 to C1 CEFR level. They include general academic vocabulary (such as 'coherent', 'resilient') and more advanced words (such as 'ephemeral', 'ubiquitous') that appear in formal texts and higher-level examinations.
Yes, you can retake the test as many times as you like. The questions are the same each time, so we recommend focusing on learning the words you did not know before retaking the test to see genuine improvement.