| Certain missiles, for short | 27 |
| Certain MIT grad | 16 |
| Certain MIT grad. | 17 |
| Certain MIT grads | 17 |
| Certain MIT graduate | 20 |
| Certain model railroads | 23 |
| Certain models | 14 |
| Certain Mohican | 15 |
| Certain molding | 15 |
| Certain moldings | 16 |
| Certain moles | 13 |
| Certain mollusk's protection | 32 |
| Certain mollusks | 16 |
| Certain monarch | 15 |
| Certain monarchy | 16 |
| Certain monarque | 16 |
| Certain monastery resident | 26 |
| Certain monetary excess | 23 |
| Certain monetary system | 23 |
| Certain monetary unit | 21 |
| Certain money transfer | 22 |
| Certain money-handler | 21 |
| Certain money-lender | 20 |
| Certain Mongol | 14 |
| Certain monitor, for short | 26 |
| Certain monitor: Abbr. | 22 |
| Certain monkey | 14 |
| Certain Monopoly card | 21 |
| Certain Monopoly property | 25 |
| Certain Monopoly sq. | 20 |
| Certain Monopoly token | 22 |
| Certain Monopoly tokens | 23 |
| Certain monster | 15 |
| Certain monster type | 20 |
| Certain month in Israel | 23 |
| Certain monuments | 17 |
| Certain moon of Saturn | 22 |
| Certain moral authority | 23 |
| Certain moratorium | 18 |
| Certain morn | 12 |
| Certain mortgage, briefly | 25 |
| Certain mortgage, informally | 28 |
| Certain Moslem | 14 |
| Certain Moslem group | 20 |
| Certain Moslem household | 24 |
| Certain mosquito protection | 27 |
| Certain motel fee | 17 |
| Certain mother | 14 |
| Certain moths | 13 |
| Certain motivator | 17 |
| Certain mound of earth | 22 |
| Certain mountain climber | 24 |
| Certain Mountain State | 22 |
| Certain mounted police | 22 |
| Certain mounts | 14 |
| Certain mouse catcher | 21 |
| Certain mouthwash / 1,000,000 = | 31 |
| Certain mover | 13 |
| Certain movie | 13 |
| Certain movie advertisements | 28 |
| Certain movie house | 19 |
| Certain movie light: Var. | 25 |
| Certain movie planet resident | 29 |
| Certain movie ratings | 21 |
| Certain movie role | 18 |
| Certain movie scenes | 20 |
| Certain movie theater | 21 |
| Certain movies | 14 |
| Certain MP3 player | 18 |
| Certain mugful | 14 |
| Certain mugs | 12 |
| Certain mules | 13 |
| Certain multiscreen cinema | 26 |
| Certain murals | 14 |
| Certain muscle | 14 |
| Certain muscle car, for short | 29 |
| Certain muscle injury | 21 |
| Certain muscles | 15 |
| Certain muscles, informally | 27 |
| Certain mushroom | 16 |
| Certain music | 13 |
| Certain music collection ... and this puzzle's theme | 56 |
| Certain music groups | 20 |
| Certain music holder | 20 |
| Certain music intervals | 23 |
| Certain music note | 18 |
| Certain music notes | 19 |
| Certain music teacher | 21 |
| Certain musical chord | 21 |
| Certain musical composition | 27 |
| Certain musical event | 21 |
| Certain musical group | 21 |
| Certain musical intervals | 25 |
| Certain musical key | 19 |
| Certain musical notes | 21 |
| Certain musical piece | 21 |
| Certain musical works | 21 |
| Certain musician | 16 |
| Certain Muslim | 14 |
| Certain Muslim dancer | 21 |