There is a common game to learn new words of a foreign language consisting of a set of cards with the word translated in your native language in the back, and the word translated in the target language in the front. You have to pick the cards you are not very sure, and remember the translation before flipping the card. At this point you can flip the card for confirmation.

I would love to have the same, but with the ability to play the sound of the word at the same time. Sounds like a simple program to write, probably it already exists.