smoothing

(verb) make smooth or smoother, as if by rubbing. Synonyms: smooth, smoothen. Example: "Smooth the surface of the wood."

(verb) make (a surface) shine. Synonyms: polish, smooth, smoothen, shine. Examples: "Shine the silver, please." "Polish my shoes."

(verb) free from obstructions. Synonyms: smooth, smooth out. Example: "Smooth the way towards peace negotiations."