Sentence:  It is significant that the Catskills , which used to be the summer playground for older teen-agers , a kind of summer suburb of <WSD>New</WSD> York , no longer attracts them in great numbers - except for those who work there as waiters , bus boys , or counselors in the day camps . 
Meaning of the word marked with <WSD> tags:  the largest city in New York State and in the United States; located in southeastern New York at the mouth of the Hudson river; a major financial and cultural center