[ uhp-shift ]
/ ˈʌpˌʃɪft /
verb (used without object)
to shift an automotive transmission or vehicle into a higher gear.
verb (used with object)
to shift (an automotive transmission or vehicle) into a higher gear.
an act or instance of upshifting.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019