1. upshift - Noun
2. upshift - Verb
(automotive, cycling) A shift to a higher gear
A shift to a higher level, such as of frequency, growth, economic level, etc.
(automotive, cycling) To shift to a higher gear
You can upshift to second gear once the car is moving.
(transitive) To shift to a higher level, such as of frequency, growth rate, economic level, etc.
The frequency of the light is upshifted.