slacks -- ((usually in the plural) pants for casual wear)
Overview of noun slack
The noun slack has 6 senses
slack -- (dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve)
slump, slack, drop-off, falloff, falling off -- (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")
slack, slack water -- (a stretch of water without current or movement; "suddenly they were in a slack and the water was motionless")
mire, quagmire, quag, morass, slack -- (a soft wet area of low-lying land that sinks underfoot)
slack, slackness -- (the quality of being loose (not taut); "he hadn't counted on the slackness of the rope")
slack -- (a cord or rope or cable that is hanging loosely; "he took up the slack")
Overview of verb slack
The verb slack has 8 senses
slack -- (avoid responsibilities and work, be idle)
slack -- (be inattentive to, or neglect; "He slacks his attention")
slack -- (release tension on; "slack the rope")
slack, slacken, slack up, relax -- (make less active or fast; "He slackened his pace as he got tired"; "Don't relax your efforts now")