What is another word for "expert"?

Roget's Thesaurus (1911) lists these synonyms for "expert": acrobat, adept, admirable, age, all, authority, bigwig, blade, business, campaigner, chef, clean, conjuror, connoisseur, crack, cracksman, cuisine, cunning, dab, dabster, dead, deceiver, donna, emeritus, esprit, experienced, eye, fellow, fiddle, file, first, fort, funambulist, genius, good, gun, hand, head, intellectual, jobber.