Verbs

(v)decelerate, slow, slow down, slow up, retardlose velocity; move more slowly“The car decelerated”
(v)slow, slow down, slow up, slack, slackenbecome slow or slower“Production slowed”
(v)slow, slow down, slow upcause to proceed more slowly“The illness slowed him down”
(v)decelerate, slow downreduce the speed of“He slowed down the car”
(v)relax, loosen up, unbend, unwind, decompress, slow downbecome less tense, rest, or take one's ease“He relaxed in the hot tub”, “Let's all relax after a hard day's work”