switch / counter
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switch
A control element used to close or interrupt an electrical circuit in order to switch a device on or off.
Kannst du bitte den Schalter für das Licht im Flur betätigen?
Could you please press the switch for the light in the hallway?
counter
A counter or window in a bank, post office, or train station where customers are served.
Für die Abholung des Pakets müssen Sie bitte zu Schalter 5 gehen.
To pick up the package, please go to counter 5.
to flip the switch
An idiom that means to suddenly and fundamentally change one's attitude, mindset, or behavior.
Nach dem Gegentor musste die Mannschaft schnell den Schalter umlegen und wieder angreifen.
After conceding the goal, the team had to quickly flip the switch and start attacking again.
The noun 'der Schalter' (the switch/counter) is derived directly from the verb 'schalten' (to switch). The ending '-er' turns the action (schalten) into the tool used to perform the action. So a Schalter is literally 'something that switches.'
Wo ist der Schalter, um die Maschine einzuschalten?
Where is the switch to turn on the machine?
To distinguish the meanings, pay attention to the context. Words like 'Licht' (light), 'Strom' (electricity), or 'Gerät' (device) point to the electrical switch. Words like 'Bank' (bank), 'Post' (post office), 'Bahnhof' (train station), or 'Ticket' (ticket) point to the counter.
Der Lichtschalter in der Küche ist kaputt.
The light switch in the kitchen is broken.
When 'Schalter' means a counter, the prepositions are important. For location (where?), use 'am Schalter' (at the counter). For direction (where to?), say 'an den Schalter' or 'zum Schalter' (to the counter).
Die nächste Kundin ist am Schalter drei dran.
The next customer is being served at counter three.
The idiom 'den Schalter umlegen' (to flip the switch) is a fixed unit. It means to suddenly and completely change one's attitude or approach. It is often used in sports or competitions.
In der zweiten Halbzeit hat die Mannschaft den Schalter umgelegt und das Spiel gewonnen.
In the second half, the team flipped the switch and won the game.
checkout / cash register
Die Kasse is the place where you pay in a store or buy tickets for an event. Der Schalter is a service counter, for example at a train station, post office, or bank. Kasse is therefore the right word for cinema tickets, while Schalter is usually used for train tickets at a station.
Wir kaufen die Fahrkarten direkt am Schalter im Bahnhof.
We’re buying the train tickets directly at the counter in the station.
Wir kaufen die Kinokarten direkt an der Kasse.
We’re buying the cinema tickets right at the box office.
