Including gender of nouns ((m) or (f)) in vocabulary list?
I'm not sure if this hasn't been asked already, but wouldn't it be nice to have the gender of words shown directly in the vocabulary list (like '(m)' or '(f)')? Now it's necessary to click a word to view its gender - viewing it in the list next to the word would be easier to study. Just a suggestion - otherwise duolingo is absolutely great!
This is one of the most important review features for me. Both in the vocabulary lists and the hover card. For anyone learning a language with gender, it is absolutely essential to learn the gender (or article) along with the word. Learning the word by itself is almost meaningless from a production standpoint, although it's fine for recognition.