Open up
Open up verb - Cause to open or to become open.
Release
Release verb - To set free (from a state of being held in check).
Both terms in one sentence
- The bat bomb, a hollow bomb casing intended to be dropped from a bomber that would open up and release over a thousand bats over a Japanese city.
Source: Trick Bomb - At least once an episode the trap door would open up and release a monster for Berk and his friends to deal with as it causes chaos around the castle.
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Iron Sky has zeppelins that can somehow travel through space from the Moon, and open up to release a swarm of Nazi Flying Saucers.
Source: Zeppelins from Another World
Cite this Source
Release and Open up. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/open_up/release
Open up & Release. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/open_up/release>.
Release or Open up. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/open_up/release.
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