My understanding is that corridor means there is no doors on both sides, and hall way means there are doors leading to rooms on both sides.
closed as off-topic by user3169, Maulik V♦, Lucian Sava, Em1, ColleenV♦ Oct 9 '14 at 19:42
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Basic questions on spelling, meaning or pronunciation are off-topic as they should be answered using a dictionary. See: Policy for questions that are entirely answerable with a dictionary" – user3169, Maulik V, Lucian Sava, Em1, ColleenV
cor·ri·dor noun \ˈkȯr-ə-dər, ˈkär-, -ˌdȯr\ : a long, narrow passage inside a building or train with doors that lead to rooms on each side
Native speaker gut check: I consider them perfect synonyms.