horsepower

noun4

1. •
   A nonmetric unit of power with various definitions, commonly the mechanical horsepower, approximately equal to 745.7 watts.
2. •
   Metric horsepower, a metric unit approximately equal to 735.5 watts.
3. •
   (figurative) Strength, performance capability, specs, or similar.
4. •
   Power derived from the motion of a horse.

   • The Sun Inn is an attractive black-and-white building, and has an old mounting block outside as a reminder of the days when horsepower meant four legs and a saddle. — 1980