Noun

• S: (n) relaxation, loosening, slackening (an occurrence of control or strength weakening) "the relaxation of requirements"; "the loosening of his grip"; "the slackening of the wind"

Verb

• S: (v) slow, slow down, slow up, slack, slacken (become slow or slower) "Production slowed"
• S: (v) slack, slacken, slack up, relax (make less active or fast) "He slackened his pace as he got tired"; "Don't relax your efforts now"
• S: (v) slacken (become looser or slack) "the rope slackened"
• direct hypernym / inherited hypernym / sister term
• phrasal verb
• sentence frame
• S: (v) slacken, remit (make slack as by lessening tension or firmness)
• direct troponym / full troponym
• direct hypernym / inherited hypernym / sister term
• S: (v) loosen, loose (make loose or looser) "loosen the tension on a rope"
• S: (v) change, alter, modify (cause to change; make different; cause a transformation) "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"
• cause
• S: (v) slacken (become looser or slack) "the rope slackened"
• derivationally related form
• sentence frame