Sentence:  There is an hour or two, after the passengers have embarked, which is disquieting and fussy....Passengers wander restlessly about or hurry, with futile energy, from place to place. Pushing men hustle each other at the <WSD>windows</WSD> of the purser's office, under pretence of expecting letters or despatching telegrams. 
Meaning of the word marked with <WSD> tags:  An opening, usually covered by glass, in a shop which allows people to view the shop and its products from outside; a shop window.