Sentence:  He thought how this dainty , fragile older woman threading her way through the <WSD>streets</WSD> of Westminster on a day in June , enjoying the flowers in the shops , the greetings from old friends , but never really drawing a deep , passionate breath , was so like himself . 
Meaning of the word marked with <WSD> tags:  a thoroughfare (usually including sidewalks) that is lined with buildings