| n. | 1. | One who does; one who performs or executes; one who is wont and ready to act; an actor; an agent. |
| 2. | (Scots Law) An agent or attorney; a factor. |
| Noun | 1. | doer - a person who acts and gets things done; "he's a principal actor in this affair"; "when you want something done get a doer"; "he's a miracle worker" |