Search Result for "smoothen": 
Wordnet 3.0

VERB (3)

1. make smooth or smoother, as if by rubbing;
- Example: "smooth the surface of the wood"
[syn: smooth, smoothen]

2. make (a surface) shine;
- Example: "shine the silver, please"
- Example: "polish my shoes"
[syn: polish, smooth, smoothen, shine]

3. become smooth; 



The Collaborative International Dictionary of English v.0.48:

Smoothen \Smooth"en\, v. t.
   To make smooth. [Obs.]
   [1913 Webster]


WordNet (r) 3.0 (2006):

smoothen
    v 1: make smooth or smoother, as if by rubbing; "smooth the
         surface of the wood" [syn: smooth, smoothen] [ant:
         roughen]
    2: make (a surface) shine; "shine the silver, please"; "polish
       my shoes" [syn: polish, smooth, smoothen, shine]
    3: become smooth