Why does the noun Bio have the article das?
Most nouns ending in -o are neuter.
Examples
das Auto (car), das Büro (office), das Kino (cinema), das Radio (radio), das Foto (photo), das Konto (account), das Cello (cello)
Exceptions
der Euro (euro), die Avocado (avocado), der Zoo (zoo)
Declension table for German noun Bio
How it changes across the four cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | das Bio | ein Bio | kein Bio |
| Akkusativ | das Bio | ein Bio | kein Bio |
| Dativ | dem Bio | einem Bio | keinem Bio |
| Genitiv | des Bios | eines Bios | keines Bios |
Examples in context
Real sentences using Bio in different cases.
| Case | Definite | Indefinite | Negative |
|---|---|---|---|
| Nominativ | Das gute Bio ist teuer.The good organic is expensive. | Ein echtes Bio ist gesund.Real organic is healthy. | Kein neues Bio ist hier.No new organic is here. |
| Akkusativ | Ich kaufe das gute Bio.I buy the good organic. | Sie sucht ein echtes Bio.She is looking for a real organic. | Wir brauchen kein neues Bio.We don't need any new organic. |
| Dativ | Ich vertraue dem guten Bio.I trust the good organic. | Er arbeitet mit einem echten Bio.He works with a real organic. | Sie gibt keinem neuen Bio eine Chance.She gives no chance to any new organic. |
| Genitiv | Der Preis des guten Bios ist hoch.The price of the good organic is high. | Die Qualität eines eines echten Bios ist wichtig.The quality of a real organic is important. | Ich kenne die Herkunft keines keines neuen Bios.I don't know the origin of any new organic. |
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Frequently asked questions
Everything you might wonder about der, die, das — and the Der Artikel app.
Is it der, die, or das Bio?
It is das Bio. In German, every noun has a grammatical gender, and Bio is neuter. You should always learn the article together with the noun to ensure your German grammar is correct.
What is the plural of das Bio?
The noun Bio is typically used in the singular form (Singularetantum) or has a plural form identical to the singular.
What does das Bio mean in English?
The German word das Bio translates to “organic” in English.
How do you decline das Bio?
Like all German nouns, Bio changes its article depending on the case. In the singular, the forms are:
- Nominativ: das Bio
- Akkusativ: das Bio
- Dativ: dem Bio
- Genitiv: des Bios
These changes are necessary because German uses cases to indicate the noun’s role in a sentence (such as the subject or object). Knowing these forms allows you to build grammatically correct sentences.
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Strong Standard declension — no extra -(e)n. The 96% majority.
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