| Common sense: sl. | 17 |
| Common sense? | 13 |
| Common sentence | 15 |
| Common sentence starter | 23 |
| Common sentence structure | 25 |
| Common service animal | 21 |
| Common service dog | 18 |
| Common serving at a Yom Kippur break fast | 41 |
| Common setting for a joke | 25 |
| Common setting in an Indiana Jones movie | 40 |
| Common settler | 14 |
| Common settler? | 15 |
| Common shade provider | 21 |
| Common Shakespearean theme | 26 |
| Common shampoo additive | 23 |
| Common shape for a dog biscuit | 30 |
| Common shape for a locket | 25 |
| Common shift | 12 |
| Common shoe buy for men | 23 |
| Common shortened girl's name | 32 |
| Common shower garment | 21 |
| Common shrew | 12 |
| Common shrub | 12 |
| Common shrubs | 13 |
| Common side | 11 |
| Common side dish | 16 |
| Common side dishes | 18 |
| Common side order | 17 |
| Common sight after a burglary | 29 |
| Common sight along Rodeo Drive | 30 |
| Common sight at West Point | 26 |
| Common sight in Alaskan waters | 30 |
| Common sight in the Yukon | 25 |
| Common sight in Venezia | 23 |
| Common sighting? | 16 |
| Common sights in the Rockies | 28 |
| Common sign | 11 |
| Common sign on two-lane highways | 32 |
| Common signature | 16 |
| Common sitcom rating | 20 |
| Common site of archaeological remains | 37 |
| Common sites for boat names | 27 |
| Common situation near the start of an inning | 44 |
| Common sixteenth | 16 |
| Common ski lift | 15 |
| Common skink | 12 |
| Common skirt feature | 20 |
| Common slogan for a music radio station | 39 |
| Common slogan spot | 18 |
| Common slur on political talk radio | 35 |
| Common smartphone app | 21 |
| Common smartphone feature | 25 |
| Common smoke detector | 21 |
| Common snack item | 17 |
| Common soap ingredient | 22 |
| Common soap opera affliction | 28 |
| Common soap opera plot device (as in, "When will they wake up?") | 74 |
| Common soccer game result | 25 |
| Common soccer result | 20 |
| Common soccer score | 19 |
| Common soccer score, in England | 31 |
| Common sock damage | 18 |
| Common soda bottle capacity | 27 |
| Common soft drink feature | 25 |
| Common soldier | 14 |
| Common soldiers, for short | 26 |
| Common solecisms | 16 |
| Common solvent | 14 |
| Common sonata finale | 20 |
| Common songbird | 15 |
| Common songbirds | 16 |
| Common sonnet line quintet | 26 |
| Common sorting basis | 20 |
| Common sound in Amish country | 29 |
| Common source of college funding | 32 |
| Common source of talk | 21 |
| Common source of wake-up sounds | 31 |
| Common souvenirs | 16 |
| Common Spanish boys' names | 30 |
| Common Spanish infinitive | 25 |
| Common Spanish surname | 22 |
| Common spare target | 19 |
| Common speech | 13 |
| Common speeding speed | 21 |
| Common spelling abuse on a punk poster | 38 |
| Common spice | 12 |
| Common spice in Indian food | 27 |
| Common spice? | 13 |
| Common sports injury site | 25 |
| Common spot for teens | 21 |
| Common sprain site | 18 |
| Common sprain spot | 18 |
| Common spread | 13 |
| Common spreads | 14 |
| Common St. Tropez sight | 23 |
| Common stage direction, once | 28 |
| Common stain | 12 |
| Common stamp | 12 |
| Common stand-in for a middle name (abbr.) | 41 |
| Common standard for model railroads | 35 |