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Verb: slack up
  1. Make less active or fast
    "He slacked up his pace as he got tired";
    - slack, slacken, relax

Derived forms: slacking up, slacked up, slacks up

Type of: decrease, lessen, minify

Nearest

skywriter
skywriting
SL
slab
slabber
slabbing
slack
slack off
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slack tide
slack up
slack water
slacken
slacken off
slackening
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slacking
slackly
slackness
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slag