smooth ‧ ly /ˈsmuːðli/ BrE AmE adverb
[ Word Family: noun : ↑ smoothness , ↑ smoothie ; verb : ↑ smooth ; adverb : ↑ smoothly ; adjective : ↑ smooth ]
1 . in a steady way, without stopping and starting again:
Traffic flowed smoothly.
2 . if a planned event, piece of work etc goes smoothly, there are no problems to spoil it:
It’ll take about three hours if everything goes smoothly.
Donna keeps the office running smoothly.
3 . if you say something smoothly, you say it in a calm and confident way:
‘All taken care of,’ he said smoothly.
4 . in a way that produces a smooth surface:
The jacket fit smoothly over her hips.