Learn the German word for "table" and you have learned Tisch. Say it in a sentence and you also need der, den, dem or des, depending on what the table is doing in the sentence — and which one goes with Tisch is not obvious from the word itself. German splits its nouns into three genders, masculine, feminine and neuter, and then declines the article for each one across four grammatical cases. A word list that shows you Tisch and not der Tisch has handed you half a word.
Three genders, mostly not guessable
Every German noun is masculine, feminine or neuter, marked by its definite article: der Tisch (table, masculine), die Gabel (fork, feminine), das Messer (knife, neuter). None of that follows from what the objects are — a table is no more inherently male than a knife is neuter. A well-known example makes the point on its own: das Mädchen, "the girl", is grammatically neuter, because the word ends in the diminutive suffix -chen, and that suffix is always neuter regardless of what it is attached to.
A handful of endings do predict gender reliably — words ending in -ung, -heit, -keit or -schaft are always feminine, words ending in -chen or -lein are always neuter — but most nouns carry no visible clue at all. The practical consequence is that gender has to be memorised alongside the word, the same way you would memorise its spelling, rather than worked out from it afterwards.
Four cases, one article, several shapes
Gender is only the first variable. German also marks a noun's job in the sentence — subject, direct object, indirect object, possession — on the article rather than on word order, in four cases: nominative, accusative, dative and genitive. Der Mann (the man, subject) becomes den Mann as a direct object, dem Mann as an indirect object, and des Mannes to show possession, with the noun itself also picking up an ending. Multiply three genders by four cases by singular and plural and you get sixteen slots for what English renders as a single word, "the" — filled by only six distinct spellings, because several slots share a form, but you still have to know which slot you are in.
Why prepositions do not rescue you
English speakers coming from French or Spanish sometimes assume a preposition will do this job instead, the way "to" or "for" does in English. German keeps prepositions, but they stack on top of the case system rather than replacing it, and several of them force a specific case: mit ("with") always takes the dative, so "with the man" is mit dem Mann, never mit der Mann. Getting the preposition right and the case wrong still produces a sentence a German speaker has to work to parse.
What this means for a word list
This app, like most vocabulary tools, stores German nouns in their base dictionary form — the nominative singular, the one you would look up. That is a deliberate simplification and, honestly, a real limitation: showing Tisch without der leaves out the single piece of information you need most to use the word correctly, because without the gender you cannot pick the right article, the right case ending, or the right adjective ending when one is attached.
Watch Your Language shows German nouns in the same base form used throughout this page, a few at a time on your iPhone Lock Screen and Apple Watch face, brought back more often when you have not seen them in a while. It is worth pairing that with a habit of your own: say the article out loud every time you meet a new noun, so the gender gets attached to the word from the first encounter rather than bolted on later.
A reasonable order to learn them in
Nominative and accusative cover most ordinary sentences and are worth being solid on first. Dative comes next, mostly because so many common prepositions — mit, bei, nach, von — demand it outright. Genitive is the one you can leave for last: it is increasingly replaced by von plus the dative in everyday speech, and you will meet it mostly in writing and in fixed expressions rather than needing to produce it yourself early on.
