noun
S-train
A1
S-Bahn: feminine noun meaning the urban commuter rail ('S-train' or suburban train). Plural 'S-Bahnen'. Abbreviated form with hyphen and capital S. Used for short-distance city/regional trains. Common collocation: die S-Bahn nehmen, zur S-Bahn fahren. Regular declension; no irregular plural. Very common in German-speaking cities.
Examples
Ich nehme die S-Bahn, um zur Arbeit zu fahren.
I take the S‑Bahn to get to work.
Als wegen eines Stromausfalls der Betrieb eingestellt wurde, benutzten viele Pendler die S-Bahn nicht, weil die Züge lange Verspätung hatten.
When service was stopped because of a power outage, many commuters did not use the S-Bahn because the trains had long delays.
Ich nehme die S-Bahn zur Arbeit.
I take the S-train to work.
Details
Mnemonics
S-Bahn sounds like 'S train' in English; remember the 'S' stands for Schnell/ Stadtschnellbahn.
Die S-Bahn — think 'die Bahn' (feminine), trains are 'die Bahn'.
Notes
Common in German-speaking cities to refer to suburban/urban rapid rail (S-Bahn).