to make or become smooth, or even, level, calm, etc.
See full dictionary entry for smooth
Examples of 'smooth down' in a sentence
smooth down
Detach the roll with the scissors and smooth down the loose end.
Times, Sunday Times (2007)
Smooth down the hair before curling or crimping the ends.
The Sun (2013)
Smooth down any stray hairs and spritz with hairspray to secure your look.
The Sun (2010)
He put his hand out to smooth down my skirt in the wind.
Times, Sunday Times (2006)
Smooth down firmly with an oiled spatula.
The Sun (2014)
Spoon on 2-3 ladles of bolognese sauce and smooth down.
Times, Sunday Times (2014)
Pour into the lined tin and smooth down to make the base.
The Sun (2012)
Each one features special technology to help smooth down fabric fibres, for softer-than-ever results that will soothe your sensitive skin rather than aggravate it.
The Sun (2018)
Find a perfectly good song and smooth down its edges, then nail some hideous strings over the top.
Times, Sunday Times (2007)
Then blow dry to smooth down cuticles using a strong barrel brush and as little heat as possible.