"My main food"
Translation:Mi comida principal
The word, "comida," was presented in one of the earliest lessons. It just slipped your mind. If you look back at the different catagories you will find that a Review lesson is always added onto the tail of each lesson which one does not see when one completes the last lesson of a given category. You only see those special lessons by going back to catagoties already fully completed. Working with those special lessons can help keep things in mind as it is all far too easily forgotton. Sorry, I don't recall which catagory "comida" was introduced in. Foods, maybe, but I think it was before that.