| Popular lane | 12 |
| Popular landscaping plant | 25 |
| Popular ladies' magazine | 28 |
| Popular lad mag | 15 |
| Popular label | 13 |
| Popular lab solvent | 19 |
| Popular knowledge | 17 |
| Popular knife brand | 19 |
| Popular kitchen wrap | 20 |
| Popular kitchen spray | 21 |
| Popular kind of fur | 19 |
| Popular kind of baby? | 21 |
| Popular kids' show | 22 |
| Popular kids' game | 22 |
| Popular kids' card game | 27 |
| Popular keyboard | 16 |
| Popular Kellogg's cracker | 29 |
| Popular junk | 12 |
| Popular June program? | 21 |
| Popular June phrase | 19 |
| Popular July 4 item | 19 |
| Popular juice drink | 19 |
| Popular juice company | 21 |
| Popular joiner | 14 |
| Popular jeans brand | 19 |
| Popular jeans | 13 |
| Popular Japanese pizza topping | 30 |
| Popular Japanese manga seen on the Cartoon Network | 50 |
| Popular Japanese beer | 21 |
| Popular jams | 12 |
| Popular Italian scooter | 23 |
| Popular Italian motor scooter | 29 |
| Popular issues | 14 |
| Popular ISP | 11 |
| Popular island | 14 |
| Popular Irish song | 18 |
| Popular Irish ballad | 20 |
| Popular IRA | 11 |
| Popular iPod | 12 |
| Popular invitees | 16 |
| Popular investment | 18 |
| Popular Internet site | 21 |
| Popular Internet server | 23 |
| Popular Internet portal | 23 |
| Popular Internet company | 24 |
| Popular Internet "list" overseer Newmark | 50 |
| Popular intercity transport | 27 |
| Popular insurance injury | 24 |
| Popular insulator | 17 |
| Popular instant-messaging app | 29 |
| Popular insecticide | 19 |
| Popular insect repellent | 24 |
| Popular Indian entree | 21 |
| Popular Indian destination | 26 |
| Popular impressionist subject | 29 |
| Popular impressionist | 21 |
| Popular import | 14 |
| Popular impersonator | 20 |
| Popular image manager | 21 |
| Popular ice-cream ingredient | 28 |
| Popular ice cream flavor, for short | 35 |
| Popular ice cream flavor | 24 |
| Popular ice cream brand | 23 |
| Popular ice cream | 17 |
| Popular I.S.P. | 14 |
| Popular hymn, with "The" | 34 |
| Popular hymn (with "In") | 34 |
| Popular hymn | 12 |
| Popular hybrid | 14 |
| Popular hwy. | 12 |
| Popular hunting dog | 19 |
| Popular humor weekly, with "The" | 42 |
| Popular hue | 11 |
| Popular houseplants | 19 |
| Popular houseplant | 18 |
| Popular household reference since the 1930s, as it's commonly known | 71 |
| Popular household fish | 22 |
| Popular house pet | 17 |
| Popular house gift | 18 |
| Popular hotel chain | 19 |
| Popular hotel | 13 |
| Popular hot custard pie | 23 |
| Popular hot breakfast | 21 |
| Popular hosting platform for personal websites in the '90s | 62 |
| Popular horse name | 18 |
| Popular horror villain | 22 |
| Popular honeymoon spot | 22 |
| Popular honeymoon island | 24 |
| Popular honeymoon destination | 29 |
| Popular Honda (6) | 17 |
| Popular Honda | 13 |
| Popular homepage | 16 |
| Popular home entertainment gadgets | 34 |
| Popular home decor magazine | 27 |
| Popular hobby | 13 |
| Popular hit | 11 |
| Popular Hispanic newspaper name | 31 |
| Popular hippie-era car | 22 |
| Popular hip-hop magazine | 24 |
| Popular high-school class | 25 |