The der/die/das rules / Nouns ending in -tum

Rule for neuter · das

Nouns ending in -tum

-tum → das (rare pattern, no examples in our list)

The rule, in plain language

The suffix -tum appears in older, abstract German nouns, and these words are generally neuter (das). However, in our current list of 2,400 frequent words the pattern doesn't occur at all - 0 words, 0% coverage - so we have no verified examples or exceptions of our own for it. Treat this rule as background information rather than an active pattern to practice right now, and check any new -tum word individually when you come across it.

Rules stick through practice. In the Genau app you train exactly this rule on its own words, with the GENAU! stamp on every correct answer - free, offline, no account. Coming soon to the App Store.