to make or become smooth
tr. & intr.v.smooth·ened, smooth·en·ing, smooth·ens
To make or become smooth.
(third-person singular simple present smoothens, present participle smoothening, simple past and past participle smoothened)
- To make smooth.
- To become smooth.
- The verb to smooth is more commonly used for this purpose than smoothen.
From smooth +"Ž -en.