What is another word for slack up?
Pronunciation: [slˈak ˈʌp] (IPA) 
"Slack up" means to decrease or relax one's efforts. There are several synonyms for the term, including slacken, ease up, let up, subside or abate, taper off, dwindle, wane or recede, decrease, relent, and taper down. These terms can be used interchangeably depending on the context. For example, when referring to a decrease in work output, one can use the word "slacken." When referring to a decrease in speed during a race, one can use the term "let up." Overall, these synonyms help to provide a clearer understanding of the concept of "slacking up" and its many applications.
