1. a person or thing that forces; one who compels or exerts force
Usage: uncommon in modern usage; more often replaced by 'one who forces' or specific agent nouns
2. a tool or device used to force something open or into place
Usage: technical or specialized use

Examples

• The forcer of the new policy faced significant resistance from employees.
• A forcer was used to open the stuck window.
• He acted as a forcer of change within the organization.
• The mechanical forcer compressed the material into the mold.