| Main Entry: | |
| Part of Speech: | noun |
| Definition: | ace in field |
| Synonyms: | connoisseur, expert |
| Main Entry: | arbitrator |
| Part of Speech: | noun |
| Definition: | settler of a dispute |
| Synonyms: | adjudicator, arbiter, fixer, go-between, holdout, judge, maven, mediator, middleperson, referee, umpire |
| Main Entry: | connoisseur |
| Part of Speech: | noun |
| Definition: | authority |
| Synonyms: | adept, aesthete, aficionado, appreciator, arbiter, bon vivant, buff*, cognoscente, critic, devotee, dilettante, epicure, expert, fan, freak*, gourmet, judge, maven*, nut*, one into, savant, specialist |
| Antonyms: | ignoramus |
| Main Entry: | consultant |
| Part of Speech: | noun |
| Definition: | professional advisor |
| Synonyms: | advisor, authority, counsel, expert, freelancer, guide, master, maven, mentor, pro*, specialist, veteran |
| Main Entry: | master |
| Part of Speech: | noun |
| Definition: | expert, skilled person, female or male |
| Synonyms: | ace*, adept, artist, artiste, authority, buff*, champion, connoisseur, conqueror, doctor, doyen, doyenne, genius, guru, maestro, maven, old hand, old pro, past master, prima donna, pro, professional, proficient, pundit, real pro, sage, savant, scientist, shark, victor, virtuoso, whiz*, whiz-bang, winner, wizard |
| Antonyms: | amateur |