welcher
which
The German word 'welcher' is an interrogative pronoun that is used to ask about specific items or choices. It can be translated as 'which' in English. However, unlike English, 'welcher' changes its form depending on the gender and number of the noun it refers to. For example, 'welcher Hund' (which dog), 'welche Katze' (which cat), 'welches Buch' (which book), 'welche Bücher' (which books).
Example sentences using: welcher
Welcher Tag ist heute?
What day is today?
This is a question about the current day of the week. 'Welcher' functions as the interrogative adjective 'what', asking about the specific identity of the day.
Welcher Kurs ist am besten für mich?
Which course is the best for me?
This sentence is expressing a question about one's preference. Here 'welcher' means 'which' and expresses a selection from a known or understood group, which are the available courses in this context.
Welcher Zug fährt nach Berlin?
Which train goes to Berlin?
This is asking for specific information about a train, and 'welcher' translates into 'which' in this context. The sentence is about determining a particular train from presumably a list of trains that travels to Berlin.