SLACK

Definition

1. adjective not tense or taut. — synonyms: loose
2. adjective flowing with little speed as e.g. at the turning of the tide.
3. adjective lacking in rigor or strictness. — synonyms: lax
4. 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.
5. noun a noticeable deterioration in performance or quality. — synonyms: slump, drop-off, falloff, falling_off
6. noun a stretch of water without current or movement. — synonyms: slack_water
7. noun a soft wet area of low-lying land that sinks underfoot. — synonyms: mire, quagmire, quag, morass
8. noun the quality of being loose (not taut). — synonyms: slackness
9. noun a cord or rope or cable that is hanging loosely.
10. verb avoid responsibilities and work, be idle.
11. verb be inattentive to, or neglect.
12. verb release tension on.
13. verb make less active or fast. — synonyms: slacken, slack_up, relax
14. verb become slow or slower. — synonyms: slow, slow_down, slow_up, slacken
15. verb make less active or intense. — synonyms: slake, abate
16. verb become less in amount or intensity. — synonyms: abate, let_up, slack_off, die_away
17. verb cause to heat and crumble by treatment with water. — synonyms: slake