| Common molecule, to a chemist | 29 |
| Common model railroading spec | 29 |
| Common mo. for showers | 22 |
| Common Mkt. inits., once | 24 |
| Common minestrone ingredient | 28 |
| Common mineral in rocks | 23 |
| Common military address | 23 |
| Common migratory songbird | 25 |
| Common middle name for a girl | 29 |
| Common medicine cabinet item | 28 |
| Common measuring-cup capacity | 29 |
| Common Masters degree hurdle | 28 |
| Common marmalade ingredient | 27 |
| Common Market, for short | 24 |
| Common Market, briefly | 22 |
| Common Market's sphere | 26 |
| Common Market monogram | 22 |
| Common Market money of acct. | 28 |
| Common Market letters, once | 27 |
| Common Market inits., once | 26 |
| Common Market initials | 22 |
| Common Market area: Abbr. | 25 |
| Common Market abbreviation | 26 |
| Common Market for short | 24 |
| Common Marketabbreviation | 26 |
| Common mark for a prodigy | 25 |
| Common man with a six-pack? | 27 |
| Common man of ancient Rome | 26 |
| Common mall anchor store | 24 |
| Common makeup applicator | 24 |
| Common make-believe drink | 25 |
| Common lyrical throw-ins | 24 |
| Common lunchbox fare, briefly | 29 |
| Common lumber dimensions | 24 |
| Common lotion ingredient | 24 |
| Common loss after a breakup | 27 |
| Common literary device | 22 |
| Common list ender (abbr.) | 25 |
| Common letters after @ | 22 |
| Common Latino newspaper name | 28 |
| Common language suffix | 22 |
| Common language in Niger | 24 |
| Common laboratory subject | 25 |
| Common knee stain for kids | 26 |
| Common kitchen amenity | 22 |
| Common keyboard symbol | 22 |
| Common key chain adornment | 26 |
| Common jukebox inserts | 22 |
| Common Jesuit school name | 25 |
| Common Japanese flavoring | 25 |
| Common itemized deduction | 25 |
| Common item in a purse | 22 |
| Common Internet symbol | 22 |
| Common Internet letters | 23 |
| Common insurance fraud cause | 28 |
| Common insurance fraud | 22 |
| Common inscription, e.g. | 24 |
| Common injury location | 22 |
| Common images on stamps | 23 |
| Common housing exterior | 23 |
| Common household cleaner | 24 |
| Common household allergen | 25 |
| Common hotel room features | 26 |
| Common hotel bathroom feature | 29 |
| Common hockey power play | 24 |
| Common HMO requirements | 23 |
| Common HMO requirement | 22 |
| Common highway speed limit | 26 |
| Common hello or goodbye | 23 |
| Common Hanoi transportation | 27 |
| Common Halloween costumes | 25 |
| Common Halloween costume | 24 |
| Common haggis ingredient | 24 |
| Common guard dog breed | 22 |
| Common green house gift | 23 |
| Common Great Lakes cargo | 24 |
| Common Grand Canyon reaction | 28 |
| Common good-luck charm | 22 |
| Common golf course trees | 24 |
| Common girl's middle name | 29 |
| Common gift of welcome | 22 |
| Common gift in February | 23 |
| Common geriatric malady | 23 |
| Common game show prize | 22 |
| Common freshwater bait fish | 27 |
| Common French infinitive | 24 |
| Common fraternity letter | 24 |
| Common fraternity activity | 26 |
| Common frat-party sight | 23 |
| Common Formula One engine | 25 |
| Common form of campus protest | 29 |
| Common form of bowling | 22 |
| Common form datum: Abbr. | 24 |
| Common football spread | 22 |
| Common follow-up wager | 22 |
| Common flowering shrub | 22 |
| Common flooring material | 24 |
| Common flashlight fillers | 25 |
| Common flagpole finial | 22 |
| Common fish-and-chips fish | 26 |