Clear up
Clear up verb - To make plain or understandable.
Open
Open verb - To change from a closed to an open position.
Cite this Source
Open and Clear up. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/clear_up/open
Clear up & Open. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/clear_up/open>.
Open or Clear up. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/clear_up/open.
Google Ngram Viewer shows how "clear up" and "open" have occurred on timeline