Der, die or das
German has three genders, and there's no reliable rule for most nouns: der Löffel, die Gabel, das Messer. FluenSi keeps the article with every saved noun, so you learn "der Schlüssel" as one unit, the way native speakers know it.
German · Deutsch
Learn German vocabulary by speaking it
German vocabulary comes with baggage: a gender for every noun, four cases that change the article, and verbs that split in two in the middle of a sentence. Word lists teach the bare word; using it correctly is the hard part.
FluenSi teaches German words with everything attached. Save a word and FluenSi adds its article, plural, case forms or conjugations, and real examples. Then it asks you to use the word in a sentence of your own, out loud, and corrects the case, word order or gender you got wrong.
Launching soon on iOS & Android. Links go live at release.
Schlüssel
noun everyday
- Translations
- key
- Article
- der (masculine)
- Plural
- die Schlüssel
- Etymology
- From Old High German sluzzil, related to schließen, to lock
Cases (singular)
- nominative
- der Schlüssel
- accusative
- den Schlüssel
- dative
- dem Schlüssel
- genitive
- des Schlüssels
Ich habe meinen Schlüssel im Büro vergessen.
I left my key at the office.
The hard part
What makes German vocabulary tricky
And how speaking your own sentences gets you past it.
Four cases
The article changes with the noun's role: der Schlüssel, den Schlüssel, dem Schlüssel. Each noun's forms table shows the cases, and saying your own sentences is where choosing the right one becomes automatic.
Separable verbs
"Anrufen" splits in a sentence: "ich rufe dich morgen an". Learners who only drill the dictionary form freeze at this. Spoken reviews make you build the full sentence, and the feedback fixes the word order when it's off.
Long compound nouns
Words like Kühlschrank and Krankenversicherung are built from smaller parts. Saving them with real example sentences, and using them yourself, makes them far less intimidating.
How it works
Four steps to fluency
1
Translate and save
Speak or type a word or phrase, get an instant translation, then tap to save it as a focus word.
2
Get the full picture
FluenSi instantly analyses it: meaning, part of speech, full conjugation table and real example sentences.
3
Review by speaking, not guessing
At the right moment, say a fresh sentence with the word, never the same one twice.
4
Get feedback that sharpens you
After each review, your sentences are graded, with suggested edits to improve them.
New to German?
Turn on Beginner mode and reviews become a quick multiple-choice quiz while you learn your first words. Once you know about 100, FluenSi suggests switching to speaking your own sentences.
German FAQ
Learning German with FluenSi
Does FluenSi show the gender of German nouns?
Yes. Every noun you save shows its article, its plural and its case forms, so you never learn a German noun without its gender.
Can FluenSi help with German word order?
Spoken reviews make you produce full sentences, and sentence feedback corrects word order, cases and verb placement, with the smallest change and a short reason.
Is FluenSi good for German exams like Goethe or telc?
It isn't an exam course, but it's a strong companion to one: save the vocabulary from your course and practise using it in spoken sentences until it comes out naturally.
Does it work offline?
Your saved words and reviews work offline. Translating, analysing new words and grading sentences need a connection.
Start speaking German
Try every feature free for 24 hours, then pick the plan that suits you.
Launching soon on iOS & Android. Links go live at release.