| Common jukebox inserts | 22 |
| Common key chain adornment | 26 |
| Common key signature | 20 |
| Common keyboard symbol | 22 |
| Common kitchen amenity | 22 |
| Common knee stain for kids | 26 |
| Common knowledge | 16 |
| Common Korean surname | 21 |
| Common lab tests | 16 |
| Common laboratory subject | 25 |
| Common landing site | 19 |
| Common language in Niger | 24 |
| Common language suffix | 22 |
| Common Lat. catchall | 20 |
| Common Latin abbr. | 18 |
| Common Latin notation | 21 |
| Common Latin phrase | 19 |
| Common Latin verb | 17 |
| Common Latin word | 17 |
| Common Latino newspaper name | 28 |
| Common lease length | 19 |
| Common lease span | 17 |
| Common legal phrase | 19 |
| Common legume | 13 |
| Common letters after @ | 22 |
| Common letters in an email address | 34 |
| Common level | 12 |
| Common liner note abbr. on a folk album | 39 |
| Common links | 12 |
| Common Lionel layout | 20 |
| Common liquor amount | 20 |
| Common list | 11 |
| Common list closer | 18 |
| Common list ender | 17 |
| Common list ender (abbr.) | 25 |
| Common listing of award finalists | 33 |
| Common literary device | 22 |
| Common literary theme | 21 |
| Common livestock feed | 21 |
| Common lizard | 13 |
| Common locales for film brawls | 30 |
| Common locket shape | 19 |
| Common London sight | 19 |
| Common loss after a breakup | 27 |
| Common lotion ingredient | 24 |
| Common Lower East Side sight, once | 34 |
| Common lowland sight | 20 |
| Common lumber dimensions | 24 |
| Common lunch holder | 19 |
| Common lunch hour | 17 |
| Common lunch meat | 17 |
| Common lunch order | 18 |
| Common lunch time | 17 |
| Common lunchbox fare, briefly | 29 |
| Common lunchbox sandwiches, informally | 38 |
| Common lunchtime | 16 |
| Common lyrical throw-ins | 24 |
| Common Maine tree | 17 |
| Common make-believe drink | 25 |
| Common makeup applicator | 24 |
| Common maladies | 15 |
| Common mall anchor store | 24 |
| Common man | 10 |
| Common man of ancient Rome | 26 |
| Common man with a six-pack? | 27 |
| Common man, briefly | 19 |
| Common mark for a prodigy | 25 |
| Common Marketabbreviation | 26 |
| Common Market for short | 24 |
| Common Market (Abbr.) | 21 |
| Common Market abbr. | 19 |
| Common Market abbreviation | 26 |
| Common Market abbreviation, once | 32 |
| Common Market area: Abbr. | 25 |
| Common Market country | 21 |
| Common Market initials | 22 |
| Common Market inits. | 20 |
| Common Market inits., once | 26 |
| Common Market letters | 21 |
| Common Market letters, once | 27 |
| Common Market member | 20 |
| Common Market money | 19 |
| Common Market money of account | 30 |
| Common Market money of acct. | 28 |
| Common Market monogram | 22 |
| Common Market's sphere | 26 |
| Common Market, briefly | 22 |
| Common Market, for short | 24 |
| Common Market: Abbr. | 20 |
| Common marketing word | 21 |
| Common marmalade ingredient | 27 |
| Common Masters degree hurdle | 28 |
| Common meadow flower | 20 |
| Common measuring-cup capacity | 29 |
| Common medicine cabinet item | 28 |
| Common meeting place | 20 |
| Common membranophone | 20 |
| Common memo intro | 17 |
| Common menu option | 18 |
| Common menu term | 16 |