6 entries under idiom topic. ×
| air pollution | |
| greenhouse gasses(expression, contamination, effluence) | |
| toxic waste(expression, contamination, effluence) | |
| concern of epa | |
| thick polluted mist | |
| urban pollution problem |
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| APA | Smart Define. (2015). smog thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/smog/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "smog thesaurus" https://smartdefine.org/smog/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, smog thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/smog/thesaurus/synonyms>. |
| MLA | Smart Define. "smog thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/smog/thesaurus/synonyms> |