Apply
Apply verb - To occupy (oneself) diligently or with close attention.
Usage example: Sam applied himself to writing thank-you letters to everyone who'd helped sponsor him for the charity walk
Settle down and apply are semantically related. In some cases you can use "Settle down" instead a verb "Apply".
Settle down
Settle down verb - To become still and orderly.
Apply and settle down are semantically related. Sometimes you can use "Apply" instead a verb "Settle down".
Cite this Source
Settle down and Apply. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/apply/settle_down
Apply & Settle down. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/apply/settle_down>.
Settle down or Apply. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/apply/settle_down.
Google Ngram Viewer shows how "apply" and "settle down" have occurred on timeline