Vocabulary size test

How many of the 5,000 do you know?

Fifty words drawn evenly from across the list, and fifteen that are not English words at all. Say which ones you know. The fakes are how the score stays honest — whatever share of those you claim is taken back off the rest.

How the order is decided

About three minutes 65 words No account, nothing stored on our side

The test needs JavaScript

It runs entirely in your browser — there is no server to send answers to — so with scripts disabled there is nothing to run. The word list and the method work without it.

Your result

Open the list there

Kept in this browser only. Clearing your site data removes it.

Where to go next

The fakes are subtracted proportionally, so a yes you were not sure about does not count twice.

Known, by position in the list

1–500 —

501–1,000 —

1,001–1,500 —

1,501–2,000 —

2,001–2,500 —

2,501–3,000 —

3,001–3,500 —

3,501–4,000 —

4,001–4,500 —

4,501–5,000 —

How many of the 5,000 do you know?

This one cannot be scored

Where to go next