| whiz(noun, adjective, feature, person, authority) |
| buff(noun, expert, ace, professional, connoisseur) |
| professional(noun, expert, ace, connoisseur, authority) |
| specialist(noun, expert, ace, professional, connoisseur) |
| egghead(noun, person, smart, authority, animate) |
| expert(noun, adjective, feature, authority, animate) |
| virtuoso(noun, person, smart, authority, animate) |
| big cheese(noun, authority, animate, expert) |
| big shot(noun, authority, animate, expert) |
| big wig(noun, authority, animate, expert) |
| front office(noun, authority, animate, expert) |
| ivory dome(noun, authority, animate, expert) |
| power elite(noun, authority, animate, expert) |
| top brass(noun, authority, animate, expert) |
| top dog(noun, authority, animate, expert) |
| top hand(noun, authority, animate, expert) |
| arbiter(noun, authority, animate, expert) |
| aristocrat(noun, authority, animate, expert) |
| boss(noun, authority, animate, expert) |
| brains(noun, authority, animate, expert) |