1. upstep - Noun
2. upstep - Verb
upstep (plural upsteps)
An upward shift of tone between the syllables or words of a tonal language.
upstep (third-person singular simple present upsteps, present participle upstepping, simple past and past participle upstepped)
To apply an upward shift of tone between the syllables or words of a tonal language.