(noun) a cord or rope or cable that is hanging loosely; "he took up the slack"

(noun) the condition of being loose (not taut); "he hadn't counted on the slackness of the rope"

(noun) a stretch of water without current or movement; "suddenly they were in slack water"

(noun) a noticeable deterioration in performance or quality; "the team went into a slump"; "a gradual slack in output"; "a drop-off in attendance"; "a falloff in quality"

(noun) dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve

(verb) cause to heat and crumble by treatment with water; "slack lime"

(verb) become less in amount or intensity; "The storm abated"; "The rain let up after a few hours"

(verb) make less active or intense

(verb) become slow or slower; "Production slowed"

(verb) make less active or fast; "He slackened his pace as he got tired"; "Don't relax your efforts now"

(verb) release tension on; "slack the rope"

(verb) be inattentive to, or neglect; "He slacks his attention"

(verb) avoid responsibilities and work, be idle

(adjective satellite) lacking in rigor or strictness; "such lax and slipshod ways are no longer acceptable"; "lax in attending classes"; "slack in maintaining discipline"

(adjective satellite) flowing with little speed as e.g. at the turning of the tide; "slack water"

(adjective satellite) lacking in strength or firmness or resilience; "flaccid muscles"; "took his lax hand in hers"; "gave a limp handshake"; "a limp gesture as if waving away all desire to know" G.K.Chesterton; "a slack grip"

(adjective satellite) not tense or taut; "the old man's skin hung loose and gray"; "slack and wrinkled skin"; "slack sails"; "a slack rope"

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