40 entries under challenge topic. ×
| spot(noun, verb, action, study, act) | |
| Gordian knot(noun, expression, issue, case) | |
| hot water(noun, expression, issue, case) | |
| sticky wicket(noun, expression, issue, case) | |
| brainteaser(noun, issue, case, matter) | |
| case(noun, issue, matter) | |
| catch(noun, issue, case, matter) | |
| conundrum(noun, issue, case, matter) | |
| corner(noun, issue, case, matter) | |
| crux(noun, issue, case, matter) | |
| dilemma(noun, issue, case, matter) | |
| enigma(noun, issue, case, matter) | |
| fix(noun, issue, case, matter) | |
| glitch(noun, issue, case, matter) | |
| hitch(noun, issue, case, matter) | |
| hole(noun, issue, case, matter) | |
| issue(noun, case, matter) | |
| jam(noun, issue, case, matter) | |
| knot(noun, issue, case, matter) | |
| matter(noun, issue, case) |
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| APA | Smart Define. (2015). physics thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/physics/thesaurus/related |
| Chicago | Smart Define. 2015. "physics thesaurus" https://smartdefine.org/physics/thesaurus/related (accessed September 23, 2026). |
| Harvard | Smart Define 2015, physics thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/physics/thesaurus/related>. |
| MLA | Smart Define. "physics thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/physics/thesaurus/related> |