Specialistinator 

A person who is an expert in a number of fields, not just one like a specialist.

Why don't you ask Bevan? He is a specialistinator and will be able to help you solve any problem.

Specialistinator by Stephen the librarian August 4, 2010

Specialization 

in which a person will take a special interest in one specific occupation / thing and will pursue that. There are many sub-categories to this word. Such as, a doctor would be a general occupations be he might specialize in gastroenterology. Also used in History / Social Studies class as the term used when (wo)man created civilizations and each person would have a single job, and would barter with other people for necessities.

Example:

Bob: Oh, i heard that you're studying to be a scientist Joe.

Joe: Yeah, my specialization is gonna be paleontology

Specialization by onewhodies November 12, 2010

Specialisting

The act of being an Army E-4; shamming, disappearing, or finding other means to get out of duties while holding the rank of SPC in the Army.

That’s some mighty fine specialisting, there, Johnson!

Specialisting by progeny December 4, 2019

specialfication 

Special treatment

He don’t need no specialfication.

specialfication by Vlanman February 17, 2022