Be in
Lock up
Lock up verb - To put in or as if in prison.
Cite this Source
Lock up and Be in. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/be_in/lock_up
Be in & Lock up. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/be_in/lock_up>.
Lock up or Be in. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/be_in/lock_up.
Google Ngram Viewer shows how "be in" and "lock up" have occurred on timeline