• dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve
  • a noticeable deterioration in performance or quality;
    • "a gradual slack in output"
  • a stretch of water without current or movement;
    • "suddenly they were in a slack and the water was motionless"
  • a soft wet area of low-lying land that sinks underfoot
  • the quality of being loose (not taut);
    • "he hadn't counted on the slackness of the rope"
  • a cord or rope or cable that is hanging loosely;
    • "he took up the slack"
  • avoid responsibilities and work, be idle
  • be inattentive to, or neglect;
    • "He slacks his attention"
  • release tension on;
    • "slack the rope"
  • make less active or fast;
    • "He slackened his pace as he got tired"
  • become slow or slower;
  • make less active or intense
  • become less in amount or intensity;
  • cause to heat and crumble by treatment with water;
    • "slack lime"
  • not tense or taut;
    • "slack and wrinkled skin"
    • "slack sails"
    • "a slack rope"
  • flowing with little speed as e.g. at the turning of the tide;
    • "slack water"
  • lacking in rigor or strictness;
    • "slack in maintaining discipline"
  • SLACK adj SLACKER, SLACKEST not tight or taut
  • SLACK v -ED, -ING, -S to slacken

Scrabble Score: 11

slack is a valid Scrabble (US) TWL word

slack is a valid Scrabble Word in Merriam-Webster MW Dictionary

slack is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 13

slack is a valid Words With Friends word