Tony is used to describe things that cost a lot or are for rich people. It often talks about neighborhoods or products.
They bought a tony car last week.
The restaurant is in a tony neighborhood.
Tony can also be the name of a business or place. People use it to talk about restaurants or shops named Tony's.
I ate at Tony's last night.
Tony's is near the main street.
Tony is often a nickname for people named Anthony. It can also be used for well-known characters or persons with this name.
Tony is the hero in the movie.
Everyone calls him Tony at work.