noun
corridor
B1
Korridor is a masculine noun meaning 'corridor' or 'hallway', a passage inside buildings. Gender: der. Plural usually Korridore; dative plural often adds -n (den Korridoren). Genitive singular des Korridors. Common in hotels, hospitals, schools. Regular declension patterns; no irregular plural.
Examples
Die Toiletten befinden sich am Ende des Korridors.
The restrooms are at the end of the corridor.
Die Schüler liefen leise im Korridor, damit die Prüfung im Saal nicht gestört wurde.
The students walked quietly in the corridor so that the exam in the hall would not be disturbed.
Der Korridor verbindet die Zimmer im oberen Stockwerk.
The corridor connects the rooms on the upper floor.
Details
Mnemonics
Picture a long hallway with doors on both sides.
Sounds like English 'corridor'.
Der Korridor — many nouns ending in -or are masculine (der ... -or).
Notes
Korridor is a more formal word for a hallway; in some contexts 'Flur' is used instead. Use 'Korridor' often for institutional buildings or longer hallways.