| 100% | SMOG | 4 | Type of air pollution that is a combination of smoke and fog |
| 59% | SMOG | 4 | Pollution whose name is a combination of "smoke" and "fog" |
| 54% | SMOG | 4 | A combination of smoke and fog |
| 49% | SMOG | 4 | Air pollution that is quite literally a "smoky fog" |
| 45% | SMOG | 4 | Combination of fog and smoke, a leading cause of lung diseases in polluted regions |
| 43% | MIGRATORY | 9 | *37a was a type of ___ (nomadic) bird that traveled long distances and was used to send messages. |
| 42% | ASTER | 5 | Daisy-like flower that is a symbol of wisdom and faith |
| 41% | SMOG | 4 | Fog that has combined with excessive smoke in the air, often leading to a lot of lung diseases |
| 41% | RNA | 3 | A type of nucleic acid that is not DNA |
| 41% | BACON | 5 | Meat from the back and sides of a pig that is dried, salted and sometimes smoked |
| 41% | BLIGHT | 6 | Plant disease that is a type of chlorosis |
| 41% | CHAI | 4 | A spiced Indian brew that is a type of 14-Across |
| 40% | PIE | 3 | Type of chart that is also a dessert |
| 40% | LAMASSU | 7 | Assyrian deity that is a mix of ox, bird and human |
| 40% | GEL | 3 | Type of toothpaste that may be blue and translucent |
| 39% | SKI | 3 | Type of resort that is often a "white" winter wonderland |
| 39% | STRING | 6 | Type of cheese that can be peeled from a stick |
| 39% | GEM | 3 | Type of stone that might be set in a ring |
| 39% | POT | 3 | ___-au-feu, signature dish from France that is a type of beef stew |
| 39% | MAZE | 4 | Type of puzzle that can be solved by a slime mold |
| 39% | CARP | 4 | Type of fish that a goldfish is |
| 39% | BEETLE | 6 | Type of insect that a ladybug is |
| 39% | BANOFFEE | 8 | English dessert pie whose name is a combination of a fruit and a confection |
| 38% | ULURU | 5 | Large sandstone formation in Australia that is a part of Aboriginal myths and legends |
| 38% | TEE | 3 | Type of shirt that may be sold as a band's merchandise |
| 38% | IDO | 3 | Artificial language that is a revision and simplification of Esperanto |
| 38% | STOUT | 5 | Type of beer that is strong and dark |
| 38% | GASGIANT | 8 | Type of planet that Jupiter and Saturn are |
| 38% | DVR | 3 | Type of device that a TiVo is: Abbr. |
| 38% | TROPICAL | 8 | Of a climate that is hot and humid |