from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To make or become smooth.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To make smooth.
- v. To become smooth.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To make smooth.
from The Century Dictionary and Cyclopedia
- To make smooth; smooth.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. become smooth
- v. make smooth or smoother, as if by rubbing
- v. make (a surface) shine
From smooth + -en. (Wiktionary)