'extensive world' is a correct and usable phrase in written English.
It is most often used when describing something that has a great reach or influence. For example, "Facebook has an extensive world-wide presence," or "This company offers extensive world-wide shipping."
Lucy was an extensive world traveler and she loved the opera and ballet.
Extensive World War II damage to the cathedral was repaired in 1947.
— For the first time in his extensive World Series career, Edgar Renteria did not have the final at-bat.
It suggests the flaws in the world to which she has committed her life, and perhaps in a more extensive world as well.
After that — despite an extensive world tour in 1999 and 2000 — he struggled to find a subject or a sound compelling enough to build an album around.
Accelerate was R.E.M.'s highest-charting album since New Adventures in Hi-Fi, and the group supported it with an extensive world tour.
Amazon, which first came to the UK in 1998, already has an extensive world-wide digital media operation that includes video streaming services (including LOVEFiLM and Amazon Prime in the U.S ., digital music services (downloads and streaming), an app storefront for Android devices, and games.
Mr. Kaplan, in the meantime, relied on his extensive art world connections to set himself up as a broker, arranging deals among collectors, artists and galleries.
WASHINGTON — Unlike many other health policy experts, Dr. Donald M. Berwick, the new chief of Medicare and Medicaid, has extensive real world experience.
These Javanese kingdoms existed to serve the commerce with the extensive Muslim world and especially with Malacca, an importer of Javanese rice.
Originally, Mr. Acconci designed a more extensive water world, including a receptionist's desk that doubled as a fish tank, but the cost and other concerns forced him to scale back the project.
