| Main Entry: | doer |
| Part of Speech: | noun |
| Definition: | go-getter |
Synonyms: |
achiever, busy person, dynamo, energetic person, man of action, motivator, mover and shaker, risk-taker, woman of action |
| Main Entry: | gadfly |
| Part of Speech: | noun |
| Definition: | goad; nuisance |
Synonyms: |
annoyance, energizer, excitant, irritant, motivator, mover, pest, prod, spur, stimulator |
| Main Entry: | prime mover |
| Part of Speech: | noun |
| Definition: | cause |
Synonyms: |
author, creator, drive, initial force, instigator, motivator, motive force, mover, power source, primum mobile |