inspector
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ticket inspector
A person whose job is to check tickets on public transportation such as buses or trains.
Der Kontrolleur ging durch den Zug und bat die Fahrgäste um ihre Fahrscheine.
The ticket inspector walked through the train and asked the passengers for their tickets.
The word is derived from the verb 'kontrollieren' (to check/inspect). The ending '-eur' comes from French and denotes a male person who performs a particular activity.
Der Kontrolleur ist für die Überprüfung der Sicherheitsstandards zuständig.
The inspector is responsible for checking the safety standards.
In the context of public transportation, you often hear the sentence: 'Die Fahrscheine, bitte!' (Tickets, please!). The ticket inspector usually gets on unexpectedly and walks through the rows.
Plötzlich stand ein Kontrolleur vor mir und ich hatte meine Fahrkarte vergessen.
Suddenly a ticket inspector was standing in front of me, and I had forgotten my ticket.
To specify the type of inspection, a compound noun is often formed. Examples include 'Qualitätskontrolleur' (quality inspector) in a factory or 'Lebensmittelkontrolleur' (food inspector) for hygiene in restaurants.
Als Qualitätskontrolleur muss er jedes Produkt genau prüfen.
As a quality inspector, he has to check every product carefully.
observer
'der Beobachter' and 'der Kontrolleur' both have to do with someone looking closely. An observer follows a situation, often neutrally and without intervening directly. An inspector, on the other hand, actively checks something, such as tickets, products, or rules. That is why 'Kontrolleur' sounds more practical and stricter. Learners may confuse the words because both people are attentive. The difference is: 'der Beobachter' gathers impressions or information, while 'der Kontrolleur' checks and can often also point out problems.
Im Zug zeigte Lisa dem Kontrolleur ihre Fahrkarte auf dem Handy.
On the train, Lisa showed the ticket inspector her ticket on her phone.
Als Beobachter schrieb Herr Kaya auf, wie die Diskussion im Kurs verlief.
As an observer, Mr. Kaya wrote down how the discussion in the course unfolded.