Synonyms

smoothen

American

[smoo-thuhn] / ˈsmu ðən /

verb (used with or without object)

to make or become smooth.

smoothen British

/ ˈsmuːðən /

verb

to make or become smooth

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

unsmoothened

adjective

Etymology

Origin of smoothen

First recorded in 1625–35; smooth + -en ¹

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

ANZ’s Nim expects the RBI to continue to smoothen the rupee’s decline without stepping in aggressively.

From The Wall Street Journal • Dec. 3, 2025

Kenya's government spokesperson, Isaac Maigua Mwaura, admitted to the BBC that the ETA had "teething problems" but said that they will "smoothen with time".

From BBC • Jan. 29, 2024

“But I feel like I’m supposed to fight through this pain, I’m gonna smoothen out my swing. ... I got the big injury but it’s actually making my swing super smooth.”

From Los Angeles Times • Jun. 14, 2023

To smoothen this process, some groups provide detailed walkthroughs for parents about how to file open records requests, create press releases, file civil rights complaints and petition school boards.

From Salon • Feb. 8, 2022

Smoothing planes are, as the name implies, used to simply smoothen the work surface after it has been trued.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023