
der Öko
environmentalist
A colloquial term for a person who strongly follows ecological principles and advocates for environmental and nature conservation. Depending on the context, the word can also be derogatory.
Er gilt im Freundeskreis als der Öko, weil er nur regionale Lebensmittel kauft und überall mit dem Fahrrad hinfährt.
Among his friends, he is considered the environmentalist because he only buys regional food and goes everywhere by bike.