Which island has so greatly influenced Las Vegas, Nevada that the city has been nicknamed "The Ninth Island"?

Hawaii is not an island. it's a group of islands.

Regarding number of islands: Hawaii has 8, BVI has 60, Bahamas has over 700, Philippines had over 7000

Hawaii is the biggest island of the state of Hawaii, but most of the people live on Oahu. The question should be plural such as "Which islands (group)...?"

SC WizKid, Duh !

.hmmm