| big cheese |
| key(adjective, importance, valuable, main, notable) |
| kingpin |
| big time(adjective, importance, main, extremely significant) |
| challenging(adjective, importance, valuable, main, notable) |
| considerable(adjective, importance, main, extremely significant) |
| constitutive(adjective, importance, valuable, main, notable) |
| donnish(adjective, importance, valuable, main, notable) |
| earnest(adjective, importance, valuable, main, notable) |
| essential(adjective, importance, valuable, main, notable) |
| exciting(adjective, importance, valuable, main, notable) |
| far reaching(adjective, importance, valuable, main, notable) |
| fateful(adjective, importance, valuable, main, notable) |
| grave(adjective, importance, valuable, main, notable) |
| haughty(adjective, importance, valuable, main, notable) |
| high-up(adjective, importance, valuable, main, notable) |
| impressive(adjective, importance, valuable, main, notable) |
| influential(adjective, importance, valuable, main, notable) |
| key-note(adjective, importance, valuable, main, notable) |
| leader(noun, important) |