1.Definition: a cord or rope or cable that is hanging loosely

"He took up the slack"

Category: Objects

2.Definition: 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"

Related Noun(s):falloff, slump

Category: General

3.Definition: a soft wet area of low-lying land that sinks underfoot

Related Noun(s):mire, morass, quag, quagmire

Category: Objects

4.Definition: a stretch of water without current or movement

"Suddenly they were in a slack and the water was motionless"

Category: Objects

5.Definition: dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve

Category: General

6.Definition: the quality of being loose (not taut)

"He hadn't counted on the slackness of the rope"

Related Noun(s):slackness

Category: General