I.
verb
ADVERB
▪ carefully , gently
▪
She ~ed his hair gently.
▪ away , out
▪
Use an iron to ~ out any creases.
▪ back , down
▪
Her mother ~ed back Alice's hair.
Smooth is used with these nouns as the object: ↑ crease , ↑ dress , ↑ hair , ↑ path , ↑ skirt , ↑ surface , ↑ transition , ↑ way , ↑ wrinkle
II.
adj.
1 without bumps
VERBS
▪ be , feel , look
▪ become
▪ make sth , wear sth
▪
The steps had been worn ~ by the thousands of passing feet.
▪ sand sth
▪
The surface should be sanded ~.
ADVERB
▪ extremely , fairly , very , etc.
▪ beautifully , exceptionally
▪
her beautifully ~ complexion
▪ completely , perfectly
▪ silky , velvety
▪
This cream makes even the roughest hands silky ~.
▪ almost
▪ deceptively
▪
the deceptively ~ surface of the glacier
2 without problems
VERBS
▪ be , look , seem
▪ become
ADVERB
▪ extremely , fairly , very , etc.
▪
a fairly ~ transition to democracy
▪ incredibly , particularly , remarkably
▪
The project got off to a remarkably ~ start.
▪ surprisingly
▪ completely
▪ not always , not entirely
▪
The process of negotiation was not entirely ~.
Smooth is used with these nouns: ↑ arc , ↑ batter , ↑ cheek , ↑ chest , ↑ chin , ↑ coat , ↑ complexion , ↑ consistency , ↑ crossing , ↑ curve , ↑ custard , ↑ distribution , ↑ dough , ↑ edge , ↑ face , ↑ finish , ↑ flesh , ↑ flight , ↑ floor , ↑ flow , ↑ forehead , ↑ grain , ↑ implementation , ↑ landing , ↑ marble , ↑ motion , ↑ move , ↑ movement , ↑ muscle , ↑ operation , ↑ operator , ↑ passage , ↑ paste , ↑ progression , ↑ ride , ↑ road , ↑ rock , ↑ running , ↑ sauce , ↑ shape , ↑ shave , ↑ skin , ↑ slope , ↑ stone , ↑ stroke , ↑ surface , ↑ taste , ↑ texture , ↑ transfer , ↑ transition , ↑ voice , ↑ wood