smoothen

/ˈsmuːðən/
verb
  1. To make something flat, even, or free of bumps or roughness.
    • You can smoothen the surface of the clay with a wet sponge.
    • She used sandpaper to smoothen the rough edges of the wooden table.
    • The baker gently smoothened the frosting on the cake with a spatula.
  2. To make a process, situation, or relationship easier or less difficult.
    • The new manager worked hard to smoothen communication between the departments.
    • A good apology can help smoothen tensions between friends.
    • They hired a consultant to smoothen the transition to the new software.
Antonyms
What does "smoothen" mean? | whatsthatwordmean | whatsthatwordmean