44 entries under noun topic. ×
| brain-teaser | |
| can of worms | |
| case | |
| crossword | |
| crossword puzzle | |
| deep water | |
| glitch(difficulty, fault, flaw, bug) | |
| growing pains | |
| homework problem | |
| koan | |
| matter | |
| metacognition(psychology, knowledge, mind) | |
| mystifier | |
| pons asinorum | |
| poser | |
| push factor(trouble, push, difficulty, factor) | |
| puzzler | |
| rebus | |
| sticker | |
| stumper |
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| APA | Smart Define. (2016). problem thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/problem/thesaurus/narrower |
| Chicago | Smart Define. 2016. "problem thesaurus" https://smartdefine.org/problem/thesaurus/narrower (accessed September 23, 2026). |
| Harvard | Smart Define 2016, problem thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/problem/thesaurus/narrower>. |
| MLA | Smart Define. "problem thesaurus" 1 March 2016. Web. 23 September 2026. <https://smartdefine.org/problem/thesaurus/narrower> |