Decelerate (5)
'decelerate' is the definition.
(I know that decelerate can be written as slow down)
This is all the clue.
(Other definitions for slow down that I've seen before include "Reduce speed" , "take it more easy" , "Don't go so fast" , "Lose velocity" , "relax" .)
'decelerate' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for brake that I've seen before include "Car stopper or thicket" , "Device for slowing or stopping car" , "Decelerate" , "Device to slow down a vehicle" , "Slower" .)