Lock up
Lock up verb - To put in or as if in prison.
Make sure
Make sure verb - Make a point of doing something; act purposefully and intentionally.
Both terms in one sentence
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Foxworth Hall in Flowers in the Attic is so big that when the grandmother arranges to have the children locked away, she can lock up a whole wing just to make sure no one hears them.
Source: Big Fancy House -
Game-Breaking Bug: If you're going to use the Invincibility code, make sure you don't land in lava, as it will lock up the game.
Source: Video Game / Comix Zone
Cite this Source
Make sure and Lock up. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/lock_up/make_sure
Lock up & Make sure. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/lock_up/make_sure>.
Make sure or Lock up. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/lock_up/make_sure.
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