Why does the noun Thermometer have the article das?

This noun follows no general suffix rule — its gender is part of the core vocabulary you simply learn alongside the word.

Declension table for German noun Thermometer

How it changes across the four cases.

CaseDefiniteIndefiniteNegative
Nominativdas Thermometerein Thermometerkein Thermometer
Akkusativdas Thermometerein Thermometerkein Thermometer
Dativdem Thermometereinem Thermometerkeinem Thermometer
Genitivdes Thermometerseines Thermometerskeines Thermometers

Examples in context

Real sentences using Thermometer in different cases.

CaseDefiniteIndefiniteNegative
Nominativ
Das neue Thermometer ist hier.The new thermometer is here.
Ein neues Thermometer liegt dort.A new thermometer lies there.
Kein neues Thermometer funktioniert.No new thermometer works.
Akkusativ
Ich brauche das neue Thermometer.I need the new thermometer.
Er sucht ein neues Thermometer.He is looking for a new thermometer.
Wir finden kein neues Thermometer.We can't find any new thermometer.
Dativ
Ich messe mit dem neuen Thermometer.I measure with the new thermometer.
Er hilft einem neuen Thermometer.He helps a new thermometer.
Sie vertraut keinem neuen Thermometer.She trusts no new thermometer.
Genitiv
Die Anzeige des neuen Thermometers ist falsch.The display of the new thermometer is wrong.
Der Wert eines eines neuen Thermometers ist gering.The value of a new thermometer is low.
Die Funktion keines keines neuen Thermometers ist klar.The function of no new thermometer is clear.

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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 Thermometer?

It is das Thermometer. In German, every noun has a grammatical gender, and Thermometer 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 Thermometer?

The plural form of das Thermometer is die Thermometer. In German, regardless of the singular gender, all plural nouns use the definite article “die.”

What does das Thermometer mean in English?

The German word das Thermometer translates to “thermometer” in English.

How do you decline das Thermometer?

Like all German nouns, Thermometer changes its article depending on the case. In the singular, the forms are:
  • Nominativ: das Thermometer
  • Akkusativ: das Thermometer
  • Dativ: dem Thermometer
  • Genitiv: des Thermometers

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.