Crack
Crack verb - To change (as a secret message) from code into ordinary language.
Usage example: the United States military used the Navajo language as a code during World War II, and the enemy never cracked it
Work out is a synonym for crack in solve topic. In some cases you can use "Work out" instead a verb "Crack", when it comes to topics like answer.
Work out
Work out verb - To find an answer for through reasoning.
Usage example: by putting our heads together, we were able to work out the problem
Both terms in one sentence
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Ironically she keeps screwing them up, mostly by trying too hard, causing Shirosaki to crack a joke at her about how her relationships usually work out the same way.
Source: Manga / Bokura Wa Minna Kawaisou - In the episode where Jack and Tosh fall through a crack into the 40s, Tosh leaves notes for the others to find that contain the data they need to work out how to get them back.
Source: Write Back to the Future
Cite this Source
Work out and Crack. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/crack/work_out
Crack & Work out. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/crack/work_out>.
Work out or Crack. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/crack/work_out.
Google Ngram Viewer shows how "crack" and "work out" have occurred on timeline