| Popular MP3 player | 18 |
| Popular MP3 player brand | 24 |
| Popular MP3 players | 19 |
| Popular muffin choice | 21 |
| Popular mulch | 13 |
| Popular museum exhibits | 23 |
| Popular music arranger | 22 |
| Popular music category | 22 |
| Popular music genre | 19 |
| Popular music mag | 17 |
| Popular music magazine | 22 |
| Popular music magazine VIP | 26 |
| Popular music style | 19 |
| Popular music variety | 21 |
| Popular music's ___ Brothers | 32 |
| Popular musical | 15 |
| Popular musical based on a Paul Gallico story | 45 |
| Popular musical items of the '20s | 37 |
| Popular Muslim name | 19 |
| Popular mustard | 15 |
| Popular N. Eng. fish dish | 25 |
| Popular N.B.A. nickname | 23 |
| Popular name for a Beethoven opus | 33 |
| Popular name for a critter with opposable thumbs | 48 |
| Popular name for a dog | 22 |
| Popular name for a seaside hotel | 32 |
| Popular name for a Thanksgiving road race | 41 |
| Popular name for a tree-lined rd. | 33 |
| Popular name for baby girls | 27 |
| Popular name for cats with white feet | 37 |
| Popular name for Dalmatians | 27 |
| Popular name for Holy Roman emperors | 36 |
| Popular name in fruit juices | 28 |
| Popular name in Norway | 22 |
| Popular name in Paris | 21 |
| Popular nasal spray | 19 |
| Popular NBC host | 16 |
| Popular NBC soap, for short | 27 |
| Popular negotiation location | 28 |
| Popular neighborhood? | 21 |
| Popular nest egg | 16 |
| Popular nest egg, for short | 27 |
| Popular nesting places | 22 |
| Popular New Age singer | 22 |
| Popular New Year's resolution | 33 |
| Popular New York City daily | 27 |
| Popular news site, with ".com" | 40 |
| Popular news source, briefly | 28 |
| Popular newspaper column | 24 |
| Popular newspaper columnist who writes for Good Housekeeping | 60 |
| Popular newspaper puzzle subtitled "That Scrambled Word Game" | 71 |
| Popular newspaper section | 25 |
| Popular nickname for tennis star Nadal | 38 |
| Popular Nicole Hollander comic | 30 |
| Popular night school subj. | 26 |
| Popular nightclub | 17 |
| Popular nightclub, e.g. | 23 |
| Popular Nissan | 14 |
| Popular Nissan model | 20 |
| Popular novel of 1881 | 21 |
| Popular novel: 1861 | 19 |
| Popular novelty at the 1904 St. Louis World's Fair | 54 |
| Popular November tuber | 22 |
| Popular now | 11 |
| Popular number | 14 |
| Popular number in the 20th century? | 35 |
| Popular number-logic puzzle | 27 |
| Popular numero | 14 |
| Popular nursery-rhyme name | 26 |
| Popular nut | 11 |
| Popular ocean liner name | 24 |
| Popular office plant | 20 |
| Popular office sign | 19 |
| Popular official stamp | 22 |
| Popular oil additive | 20 |
| Popular on-line auction company | 31 |
| Popular one-named singer | 24 |
| Popular one-named techno musician | 33 |
| Popular online lectures | 23 |
| Popular online lectures about "ideas worth spreading" | 63 |
| Popular online magazine | 23 |
| Popular online reference | 24 |
| Popular online tech. news source | 32 |
| Popular operating system | 24 |
| Popular orange soda | 19 |
| Popular origami sculpture | 25 |
| Popular ornamental | 18 |
| Popular ornamental tree | 23 |
| Popular oven cleaner | 20 |
| Popular packs | 13 |
| Popular pad | 11 |
| Popular pain relief brand | 25 |
| Popular pain relief cream | 25 |
| Popular pain reliever | 21 |
| Popular painkiller | 18 |
| Popular painkiller, for short | 29 |
| Popular painting scene | 22 |
| Popular palate cleanser | 23 |
| Popular palindrome | 18 |
| Popular palindrome center | 25 |