1. Change to a higher gear in a vehicle or machine
   "He upshifted to fifth gear on the highway"
    
2. To increase in intensity, pace, or quality
   "The team needed to upshift their efforts to meet the deadline"

1. The act of changing to a higher gear
    
2. An increase or improvement in status, quality, or intensity
   "The company experienced an upshift in productivity"

Derived forms: upshifting, upshifted, upshifts