Make slack
Slacken and make slack are semantically related. In some cases you can use "Slacken" instead a verb phrase "Make slack".
Slacken
Slacken verb - To make less taut.
Cite this Source
Slacken and Make slack. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/make_slack/slacken
Make slack & Slacken. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/make_slack/slacken>.
Slacken or Make slack. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/make_slack/slacken.
Google Ngram Viewer shows how "make slack" and "slacken" have occurred on timeline