“the process of repairing and rebuilding homes and businesses in a deteriorating area (such as an urban neighborhood) accompanied by an influx of middle-class or affluent people and that often results in the displacement of earlier, usually poorer residents” – Merriam-Webster Dictionary
The word was encountered through the article”Here, Poverty And Privilege Are Neighbors; Income Gaps Are a Source Of Resentment and Guilt” by
The sentence it was used in is “They range from Ms. Davis’s neighborhood, where two public housing projects bookend a gentrifying corridor of brownstones and row houses, to an area along the beach in Brooklyn where West End Avenue appears to be a stark line of demarcation ( marking of the limits) between the serene old-immigrant opulence (great wealth or luxuriousness) of Manhattan Beach and the teeming new-immigrant enclave ( social unit enclosed within or as if within foreign territory) of Brighton Beach.”
When the author utilizes this word he’s basically saying that the houses are under construction. Ms. Davis’s neighborhood has two housing projects that is in the process of repairing and rebuilding in a deteriorating alley way of brownstones and row houses. This word is also utilized in the juxtaposition project because many places in New York is constantly under construction so it relates to in progress vs completed.