German lets almost any adjective become a noun. Alt ("old") becomes der Alte ("the old man"); krank ("sick") becomes die Kranke ("the sick woman"); deutsch ("German") becomes der Deutsche ("the German [man]"). Abstract qualities work too: gut ("good") becomes das Gute ("the good," "goodness"). These are called nominalized adjectives, and they are everywhere in real German — der Angestellte ("the employee"), die Bekannte ("the acquaintance"), der Reisende ("the traveler"), das Wichtigste ("the most important thing").
Here is the crucial twist that trips up every English speaker: even though these words are now nouns — capitalized, taking articles, referring to people and things — they still decline like adjectives. The ending changes depending on the article in front of them, just as a normal adjective's ending would. Der Deutsche but ein Deutscher. They are, in a real sense, adjectives wearing a noun's clothing.
How nominalization works
To turn an adjective into a noun you do two things: capitalize it and give it a gender (with the article showing the gender) plus the adjective ending it would have had if it were still modifying a noun. The "missing" noun is understood.
| Adjective |
| Nominalized | Meaning |
|---|---|---|---|
| alt | (der alte Mann) | der Alte | the old man |
| krank | (die kranke Frau) | die Kranke | the sick woman |
| deutsch | (der deutsche Mann) | der Deutsche | the German (man) |
| gut | (das gute Ding) | das Gute | the good (thing), goodness |
The gender tells you what is meant. Masculine = a male person (der Alte, the old man), feminine = a female person (die Alte, the old woman), and neuter = an abstract quality or "thing" (das Alte, "the old," what is old). This three-way split is fully systematic.
Der Alte von nebenan grüßt jeden Morgen freundlich.
The old man next door says hello kindly every morning.
Die Kranke durfte heute zum ersten Mal aufstehen.
The sick woman was allowed to get up for the first time today.
Im Alten liegt oft mehr Wert, als man denkt.
There's often more value in the old than people think.
The endings still depend on the article
This is the whole point: because these are adjectives at heart, their ending follows the same weak / mixed / strong rules as any adjective. After a definite article (der, die, das) they take weak endings; after an indefinite article (ein, kein, possessives) they take mixed endings; with no article they take strong endings.
Compare the masculine der Deutsche across article types:
| Case | After der (weak) | After ein (mixed) | No article (strong) |
|---|---|---|---|
| Nominative | der Deutsche | ein Deutscher | Deutscher |
| Accusative | den Deutschen | einen Deutschen | Deutschen |
| Dative | dem Deutschen | einem Deutschen | Deutschem |
| Genitive | des Deutschen | eines Deutschen | Deutschen |
The contrast der Deutsche (weak -e) versus ein Deutscher (mixed -er) is the signature fact about these words. The -er in ein Deutscher appears precisely because ein carries no gender ending of its own, so the adjective has to show the masculine nominative with -er — exactly as in ein guter Mann. This is why you cannot treat Deutscher as a fixed noun: its ending is alive and responds to the article in front of it.
Er ist Deutscher, aber sie ist Österreicherin.
He is (a) German, but she is (an) Austrian.
Ein Deutscher und eine Französin teilten sich das Abteil.
A German man and a French woman shared the compartment.
Die Deutschen trinken im Schnitt viel Kaffee.
Germans on average drink a lot of coffee.
A common set you will meet constantly
Many everyday "person" words are exactly this kind of nominalized participle or adjective. They all decline by article type, and each has a masculine, feminine, and plural form.
| After definite article | After indefinite article | Meaning |
|---|---|---|
| der/die Angestellte | ein Angestellter / eine Angestellte | employee |
| der/die Bekannte | ein Bekannter / eine Bekannte | acquaintance |
| der/die Verwandte | ein Verwandter / eine Verwandte | relative |
| der/die Erwachsene | ein Erwachsener / eine Erwachsene | adult |
| der/die Reisende | ein Reisender / eine Reisende | traveler |
| der/die Deutsche | ein Deutscher / eine Deutsche | German person |
Ein Angestellter der Bank hat mir alles geduldig erklärt.
An employee of the bank patiently explained everything to me.
Eine Bekannte von mir arbeitet jetzt in Wien.
An acquaintance of mine now works in Vienna.
Erwachsene zahlen zwölf Euro, Kinder die Hälfte.
Adults pay twelve euros, children half.
One word in this family is irregular and worth flagging: der Beamte ("the civil servant"). The masculine declines as a nominalized adjective (der Beamte, ein Beamter, dem Beamten), but the feminine is the ordinary noun die Beamtin (plural Beamtinnen), not die Beamte. So the masculine is an adjective-noun and the feminine is a regular -in noun — a small but real asymmetry worth committing to memory.
Der Beamte am Schalter war überraschend hilfsbereit.
The civil servant at the counter was surprisingly helpful.
Abstract neuter nominalizations
The neuter forms are a productive way to talk about qualities and "the X thing." Das Gute ("the good / goodness"), das Schöne ("the beautiful"), das Beste ("the best part"), das Wichtigste ("the most important thing"). They are especially common after etwas, nichts, viel, wenig, and alles — and after these words the ending is the strong neuter -es (except after alles, which behaves like a definite article and takes weak -e).
Ich wünsche dir nur das Beste für die Prüfung.
I wish you only the best for the exam.
Das Wichtigste ist, dass alle gesund sind.
The most important thing is that everyone is healthy.
Hast du etwas Neues gehört?
Have you heard anything new?
Bei dem Buffet gab es nichts Vegetarisches.
At the buffet there was nothing vegetarian.
Note the capitalization and endings together: etwas Neues (strong neuter -es, capitalized), but alles Gute (weak -e, the famous birthday wish "all the best"). These set phrases — alles Gute, nichts Besonderes, etwas Wichtiges — are worth memorizing whole.
Common Mistakes
❌ Er ist ein Deutsche.
Incorrect — after 'ein' the adjective-noun takes the mixed masculine ending -er.
✅ Er ist ein Deutscher.
He is a German.
❌ Ich habe mit einem angestellte gesprochen.
Incorrect — must capitalize and decline: einem Angestellten (dative).
✅ Ich habe mit einem Angestellten gesprochen.
I spoke with an employee.
❌ Hast du etwas neues gehört?
Incorrect — the nominalized adjective is capitalized and takes -es: Neues.
✅ Hast du etwas Neues gehört?
Have you heard anything new?
❌ Die Beamte hat mir den Ausweis gegeben.
Incorrect — the feminine is the regular noun 'die Beamtin', not 'die Beamte'.
✅ Die Beamtin hat mir den Ausweis gegeben.
The (female) civil servant gave me the ID card.
❌ Das wichtigste ist, dass du kommst.
Incorrect — nominalized adjective must be capitalized: das Wichtigste.
✅ Das Wichtigste ist, dass du kommst.
The most important thing is that you come.
Key Takeaways
- Almost any adjective can become a noun: capitalize it and add the adjective ending it would have had.
- Gender = meaning: masculine/feminine for people (der/die Alte), neuter for abstract qualities (das Gute).
- The ending still follows weak / mixed / strong rules: der Deutsche but ein Deutscher — these are live adjectives, not fixed nouns.
- Learn the common set whole: der/die Angestellte, Bekannte, Verwandte, Erwachsene, Reisende, Deutsche — with the irregular feminine die Beamtin.
- Neuter forms after etwas / nichts / viel take strong -es (etwas Neues), but after alles take weak -e (alles Gute).
Now practice German
Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.
Start learning German→Related Topics
- Nominalization: Turning Words into NounsB2 — How German turns infinitives, adjectives, and participles into nouns — and why the resulting words keep adjective endings.
- Weak Adjective Declension (after der-words)A2 — The weak endings used when a definite article or der-word already shows the case: only -e or -en, with -e in just five cells.
- Mixed Adjective Declension (after ein-words)B1 — The hybrid pattern after ein-words: weak endings where the ein-word inflects, but strong endings in the three gaps where ein shows nothing.
- German Adjectives: An OverviewA1 — The fundamental split between uninflected predicate adjectives and inflected attributive adjectives, and how it sets up the three declension patterns.
- Gender of Persons and ProfessionsA2 — How natural gender maps onto grammatical gender for people, and how the productive suffix -in derives feminine job titles like Lehrerin, Ärztin, and Köchin.