| Idaho's largest city | 24 |
| Idaho's most populous county | 32 |
| Idaho's neighbor | 20 |
| Idaho's nickname | 20 |
| Idaho's state horse | 23 |
| Idaho's ___ Falls | 21 |
| Idaho's ___ Percé Indians | 32 |
| Idaho, e.g. | 11 |
| Idaho, for one | 14 |
| Idaho, informally | 17 |
| Idaho, slangily | 15 |
| Idaho, the -- State | 19 |
| Idaho, the ___ State | 20 |
| Idaho-born poet | 15 |
| Idaho/Wyoming landscape | 23 |
| Idahos, e.g. | 12 |
| Idas, to Castor | 15 |
| Idée fixe | 12 |
| Idée source | 14 |
| Idée sources | 15 |
| Idée ___ | 11 |
| Idée ___ (accepted idea, in French) | 38 |
| Idea | 4 |
| Idea accepted as true | 21 |
| Idea beginning | 14 |
| Idea carved in stone | 20 |
| Idea destined to fail | 21 |
| Idea follower | 13 |
| Idea man, maybe | 15 |
| Idea manufacturer | 17 |
| Idea of a musical composition | 29 |
| Idea or sense | 13 |
| Idea origins | 12 |
| Idea person | 11 |
| Idea person's cry | 21 |
| Idea person's exclamation | 29 |
| Idea symbolizer | 15 |
| Idea that a communist nation influences its neighbors | 53 |
| Idea that may spread via the Internet | 37 |
| Idea that may summon up courage | 31 |
| Idea that motivates getting bikini-clad babes to advertise motor vehicles | 73 |
| Idea that opposes evolution, for short | 38 |
| Idea that's spread virally | 30 |
| Idea to pursue | 14 |
| Idea's beginning | 20 |
| Idea's origination | 22 |
| Idea's start | 16 |
| Idea, in St. Adolphe | 22 |
| Idea, in Iberville | 18 |
| Idea, in Ile Maligne | 20 |
| Idea, in St. Croix | 18 |
| Idea, in St. Foy | 16 |
| Idea-to-product interval | 24 |
| Idea: Comb. form | 16 |
| Ideal | 5 |
| Ideal 1040 strategy? | 20 |
| Ideal area to hit a ball with | 29 |
| Ideal beau | 10 |
| Ideal camping gear? | 19 |
| Ideal conclusion? | 17 |
| Ideal condition in which to ford a stream | 41 |
| Ideal conditions | 16 |
| Ideal ending | 12 |
| Ideal ending? | 13 |
| Ideal enumeration | 17 |
| Ideal example | 13 |
| Ideal family home | 17 |
| Ideal finish? | 13 |
| Ideal for cacti | 15 |
| Ideal for dieters | 17 |
| Ideal for engines and audio equipment | 37 |
| Ideal for growing | 17 |
| Ideal for Joshua trees | 22 |
| Ideal for sledding | 18 |
| Ideal for tubing, as a river | 28 |
| Ideal garden | 12 |
| Ideal getaway | 13 |
| Ideal home for mousers | 22 |
| Ideal husband | 13 |
| Ideal husband, e.g. | 19 |
| Ideal keepsake? | 15 |
| Ideal leader? | 13 |
| Ideal locales | 13 |
| Ideal location | 14 |
| Ideal locations | 15 |
| Ideal match, it's said, for a Cabernet Sauvignon | 52 |
| Ideal mate | 10 |
| Ideal model | 11 |
| Ideal mother? | 13 |
| Ideal of beauty, 1890s-style | 28 |
| Ideal or monde | 14 |
| Ideal or trip preceder | 22 |
| Ideal pairing | 13 |
| Ideal partners | 14 |
| Ideal person to go out with | 27 |
| Ideal picnic element | 20 |
| Ideal place | 11 |
| Ideal places | 12 |
| Ideal plot | 10 |
| Ideal position | 14 |