Meanings
How to pronounce "roughen up":
AU
to make something rough or rougher
Example Sentences
1
The carpenter used sandpaper to roughen up the surface of the wood.
2
I need to roughen up this leather jacket to give it a more worn-out look.
3
To make the paint adhere better, we should roughen up the walls before applying it.
4
The boxer practiced punches to roughen up his knuckles for the fight.
5
The sandpaper will roughen up the smooth metal surface for better adhesion.
