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
• S: (v) weaken (become weaker) "The prisoner's resistance weakened after seven days"
• S: (v) decrease, diminish, lessen, fall (decrease in size, extent, or range) "The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fell to under a hundred pounds"; "his voice fell to a whisper"
• S: (v) change magnitude (change in size or magnitude)
• S: (v) change (undergo a change; become different in essence; losing one's or its original nature) "She changed completely as she grew older"; "The weather changed last night"
• 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
• cause
• S: (v) slacken (become looser or slack) "the rope slackened"
• derivationally related form
• sentence frame