It's very useful to have a good understanding of both noun genders and plurals in this category. If you end up needing to visit a doctor in Germany (hopefully not!), then you probably want to be able to give an accurate description of where you are experiencing pain. Unlike with rooms and family members, the gender assignments here are seemingly random and must be learned "auswendig" (by heart).
Your knowledge of noun genders plays a gigantic role in your ability to correctly apply German grammar rules. We have color coded the nouns on our site so you can more easily learn the articles that go with each noun, both improving your vocabulary and giving you a huge advantage when it comes to accurately constructing German sentences.
Yes, head to Quiz page. Currently, we only support testing one category at a time. This is a self-funded project by fellow German language enthusiasts, so if you want to support new site features, consider donating or sharing the site with a friend!
You can get an appropriate word of your choosing added by supporting us here.