Questions about example sentences with, and the definition and usage of "Gentrification"

A: Thanks a million !!!

A: it means the entry of new buildings / facilities / improvement in the state of the place in very poor areas because of the entry of rich people into those areas.

A: @ritzz:
In the US gentrification means that small businesses have to shut down because they are being pushed out by construction and big commercial businesses

A: little more advanced: Due to recent gentrification in the area, local business owners are upset and frustrated that they might not be able to make rent in the next month.

less advanced: Gentrification is making it hard for black people to keep living here