| Natl. Broadcaster | 17 |
| Natl. Chicken Month | 19 |
| Natl. Congress of Mothers, today | 32 |
| Natl. Courtesy Mo. | 18 |
| Natl. Courtesy Month | 20 |
| Natl. Dessert Month | 19 |
| Natl. Diabetes Awareness Month | 30 |
| Natl. Dog Show promoter | 23 |
| Natl. economic indicator | 24 |
| Natl. economic stat | 19 |
| Natl. economic stats | 20 |
| Natl. education group | 21 |
| Natl. Funeral Directors site | 28 |
| Natl. Grapefruit Mo. | 20 |
| Natl. Guard counterpart | 23 |
| Natl. Hot Dog Mo. | 17 |
| Natl. Humor Month | 17 |
| Natl. League city | 17 |
| Natl. Library Card Sign-Up Month | 32 |
| Natl. Merit Scholarship earner's exam | 41 |
| Natl. Merit Scholarship qualifier | 33 |
| Natl. Merit Scholarship qualifying exam | 39 |
| Natl. Mon. near Charleston, S.C. | 32 |
| Natl. Muzzleloading Championship sponsor | 40 |
| Natl. negotiator | 16 |
| Natl. Novel Writing mo. | 23 |
| Natl. Nutrition Mo. | 19 |
| Natl. org. of good works since 1906 | 35 |
| Natl. park campers | 18 |
| Natl. park sights | 17 |
| Natl. Piano Mo. | 15 |
| Natl. Pizza Month | 17 |
| Natl. Poetry Mo. | 16 |
| Natl. Popcorn Poppin' Month | 31 |
| Natl. population-counting agcy. | 31 |
| Natl. Pretzel Mo. | 17 |
| Natl. registry grp. | 19 |
| Natl. registry org. | 19 |
| Natl. Safe Toys and Gifts Mo. | 29 |
| Natl. Sewing Month | 18 |
| NATO agreement, e.g. | 20 |
| NATO alphabet "E" | 27 |
| NATO alphabet ender | 19 |
| NATO alphabet letter between Alfa and Charlie | 45 |
| NATO alphabet vowel | 19 |
| NATO alphabet word after November | 33 |
| NATO and AWOL, e.g. | 19 |
| NATO and PLO, for two | 21 |
| Nato and Seato | 14 |
| NATO capital | 12 |
| NATO charter member | 19 |
| NATO country | 12 |
| NATO country capital | 20 |
| NATO cousin | 11 |
| NATO founder | 12 |
| NATO founding member | 20 |
| NATO headquarters | 17 |
| NATO headquarters site | 22 |
| NATO is one | 11 |
| NATO joiner of '04 | 22 |
| NATO kin | 8 |
| NATO leader | 11 |
| NATO mem. | 9 |
| NATO member | 11 |
| NATO member since 1982 | 22 |
| NATO member since 1999: Abbr. | 29 |
| NATO member since 2004 | 22 |
| NATO member since 2009 | 22 |
| NATO member since 4/1/2009 | 26 |
| NATO member with the smallest population: Abbr. | 47 |
| NATO member: Abbr. | 18 |
| NATO member?: Abbr. | 19 |
| NATO members | 12 |
| NATO or OPEC | 12 |
| NATO part: Abbr. | 16 |
| NATO ratification signer | 24 |
| NATO refusal | 12 |
| NATO target | 11 |
| NATO word | 9 |
| NATO's basis | 16 |
| NATO's defunct cousin | 25 |
| NATO's extinct cousin | 25 |
| NATO's first Supreme Allied Commander Europe | 48 |
| NATO's first supreme commander | 34 |
| NATO's former kin | 21 |
| NATO's late cousin | 22 |
| NATO, e.g. | 10 |
| NATO, for one | 13 |
| Natrual gas component | 21 |
| Nats and Phils | 14 |
| Nats division | 13 |
| Nats or Nets, e.g. | 18 |
| Nats' MLB div. | 18 |
| Natter | 6 |
| Natter, e.g. | 12 |
| Nattered | 8 |
| Nattered ad nauseam | 19 |
| Nattered away | 13 |
| Nattering nag of old TV | 23 |
| Nattering type | 14 |