slacken

US /ˈslæk.ən/
UK /ˈslæk.ən/
"slacken" picture
1.

make or become less active or intense

:
•
The rain began to slacken.
•
He needs to slacken his pace if he wants to finish the marathon.
:
loosenrelaxeaseabatediminish
:
tightenintensifyaccelerate
2.

loosen (something, especially a rope or cable)

:
•
He told them to slacken the ropes.
•
The sailor had to slacken the sail to catch the wind.
:
loosenrelaxease
:
tightentauten