使平滑;使順暢;使平穩
Smoothen \Smooth"en\, v. t. To make smooth. [Obs.]
smoothen v 1: make smooth or smoother, as if by rubbing; "smooth the surface of the wood" [syn: {smooth}] [ant: {roughen}] 2: (of surfaces) make shine; "shine the silver, please"; "polish my shoes" [syn: {polish}, {smooth}, {shine}] 3: become smooth