Spin to Win is a fun vocabulary game that I have learnt throught DDeubel.
Simply press the red lever on the right of the picture to take a spin. You have to decide whether the two elements (word+suffix) make an English word.
If you think they do, just click on correct. If they don't, nudge back or forward, either the first element or the second until the two form, in your opinion, an English word. And check what happens by clicking on correct.