- a person who arrives or shows up: a contest open to all comers
- Informal a person or thing that shows promise of being a success
- One that arrives or comes: free food for all comers.
- One showing promise of attaining success: a political comer.
- One in a race who is catching up to others and shows promise of winning.
- (figuratively) One who is catching up in some contest and has a likelihood of victory.
- One who arrives.
- The champ will face all comers.
- A surname.