phonotelephote(n) - A means of transmitting and receiving both voice and picture for a personal conversation
Champs-Elysees(n) - a prestigious avenue in Paris, famous for the Cafes, cinemas and shops
phototelegrams (n) - A telegraphic transmission including images
jovians(n) - inhabitants of planet Jupiter
inhabitants(n) - a person or animal that lives in or occupies a place.
Centropolis (n) - (in this story) the new name of New York in 2889
valet(n) - a man's personal male attendant, who is responsible for his clothes and appearance