16 words
Food and drink
Enough to read a menu and avoid the thing you did not want.
茶chátea
咖啡kāfēicoffee
水shuǐwater
啤酒píjiǔbeer
米饭mǐfàncooked rice
面条miàntiáonoodles
饺子jiǎozidumplings
包子bāozisteamed filled bun
鸡肉jīròuchicken
牛肉niúròubeef
猪肉zhūròupork
鱼yúfish
鸡蛋jīdànegg
蔬菜shūcàivegetables
辣làspicy
菜单càidānmenu
Turn the pinyin off with the switch above and it blurs rather than disappearing. Tap any blurred line to peek at it. That is a better test than hiding it completely, because you find out whether you knew it or only nearly knew it.