(1):
(n.) The part of anything that hangs loose, having no strain upon it; as, the slack of a rope or of a sail.
(2):
(adv.) Slackly; as, slack dried hops.
(3):
(superl.) Weak; not holding fast; as, a slack hand.
(4):
(n.) Small coal; also, coal dust; culm.
(5):
(n.) A valley, or small, shallow dell.
(6):
(a.) Alt. of Slacken
(7):
(superl.) Lax; not tense; not hard drawn; not firmly extended; as, a slack rope.
(8):
(v. t.) Alt. of Slacken
(9):
(superl.) Not violent, rapid, or pressing; slow; moderate; easy; as, business is slack.
(10):
(superl.) Remiss; backward; not using due diligence or care; not earnest or eager; as, slack in duty or service.