This is the 12107th most frequent German word.
umweltorganisation
An environmental organization.
Here, 'Umweltorganisation' is used as a subject noun indicating an entity focusing on environmental causes.
Die Umweltorganisation organisiert eine Kampagne zum Schutz von Korallenriffen.
The environmental organization is organizing a campaign to protect coral reefs.
In this sentence, 'Umweltorganisation' is used as a direct object, representing the organization the speaker wants to join.
Ich möchte einer Umweltorganisation beitreten, um die Natur zu unterstützen.
I want to join an environmental organization to support nature.
This usage highlights 'Umweltorganisationen' in plural form to discuss them as a general concept.