If you click on the word, it'll show you the meaning. If is the first time the writers had been seen, the characters will be highlighted (currently yellow, but I hope they change that as it's difficult to see the character shapes in yellow). Also, the first Several Times a word is shown, it will also be underlined. In that case, you can still click on it to remind yourself what it means, if you like, before selecting your choice. After that, it won't necessarily be underlined and you may not be able to get a "sneak peak" by clicking on the word before choosing your answer. It's actually Very Well Designed, once you know what clues to look for !!