slow down Meaning, Definition & Usage

1. verb lose velocity; move more slowly
   decelerate; slow; retard; slow up.
   
   • The car decelerated
2. verb become slow or slower
   slacken; slow; slack; slow up.
   
   • Production slowed
3. verb cause to proceed more slowly
   slow; slow up.
   
   • The illness slowed him down
4. verb reduce the speed of
   decelerate.
   
   • He slowed down the car
5. verb become less tense, rest, or take one's ease
   unwind; unbend; relax; decompress; loosen up.
   
   • He relaxed in the hot tub
   • Let's all relax after a hard day's work

WordNet