When doing these exercises I use the Library Index to search for translations of words/phrases I am not familiar with.
In this case I searched for "magical" and the result shown was féerique. This however was marked wrong!!
I also searched for "pitch tent" and could not find a result for pitch but got a result unrelated to tents, so searched for tent and found to put up a tent = "installer une tente"
This too was marked wrong and instead "planter" was the word used. However planter is not even in the Library index.
What is recommended as the best resource for definitions for these exercises so that we can find the correct translation?