| slack up 
 
 make less active or fast
 - He slackened his pace as he got tired
 - Don't relax your efforts now
 • Syn:
 slack, slacken, relax
 • Derivationally related forms:
 relaxation (for: relax), slack (for: slack)
 • Hypernyms:
 decrease, lessen, minify
 • Verb Frames:
 - Somebody ----s something
 - Something ----s something
 
 
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