| Reason to rant | 14 |
| Reason to rat | 13 |
| Reason to reboot | 16 |
| Reason to recalculate | 21 |
| Reason to recalibrate | 21 |
| Reason to renovate an opera house? | 34 |
| Reason to rent a tux | 20 |
| Reason to replace a windshield | 30 |
| Reason to reschedule | 20 |
| Reason to reset the clocks: Abbr. | 33 |
| Reason to retire | 16 |
| Reason to retire? | 17 |
| Reason to return clothing | 25 |
| Reason to roll out the tarp | 27 |
| Reason to say 'Alas!' | 29 |
| Reason to say 'alas' | 28 |
| Reason to say "Brr!" | 30 |
| Reason to say "Gesundheit!" | 37 |
| Reason to say "Now what do we do?" | 44 |
| Reason to say "oy, vey!" | 34 |
| Reason to say "pee-yew!" | 34 |
| Reason to say "Whew!" | 31 |
| Reason to scold a child | 23 |
| Reason to scold a kid | 21 |
| Reason to scratch | 17 |
| Reason to scratch one's head | 32 |
| Reason to scratch one's head? | 33 |
| Reason to see a dentist | 23 |
| Reason to see a dermatologist | 29 |
| Reason to see a doctor | 22 |
| Reason to see a hypnologist | 27 |
| Reason to see a mechanic | 24 |
| Reason to see a rheumatologist | 30 |
| Reason to see one's doctor in these times | 45 |
| Reason to seek counseling | 25 |
| Reason to separate swine | 24 |
| Reason to serve again | 21 |
| Reason to shake | 15 |
| Reason to shout ''Eureka!'' | 43 |
| Reason to shout "Eureka!" | 35 |
| Reason to slow down | 19 |
| Reason to squint | 16 |
| Reason to stay after the fourth quarter | 39 |
| Reason to stay home from work, say | 34 |
| Reason to stay home on a Saturday night | 39 |
| Reason to stay in bed | 21 |
| Reason to stop filming "Star Trek"? | 45 |
| Reason to stop on a road trip | 29 |
| Reason to stop the presses | 26 |
| Reason to study | 15 |
| Reason to sue | 13 |
| Reason to sue a publisher | 25 |
| Reason to swear | 15 |
| Reason to take a sick day | 25 |
| Reason to take acetaminophen | 28 |
| Reason to take shelter | 22 |
| Reason to take Valium | 21 |
| Reason to take Xanax | 20 |
| Reason to toss a canned good | 28 |
| Reason to tremble | 17 |
| Reason to turn down an invitation | 33 |
| Reason to use a blue book | 25 |
| Reason to use a hot line | 24 |
| Reason to use a paper towel | 27 |
| Reason to use an inhaler | 24 |
| Reason to use Clearasil | 23 |
| Reason to use liniment | 22 |
| Reason to use Maalox | 20 |
| Reason to use Retin-A | 21 |
| Reason to use Stridex | 21 |
| Reason to use wipers | 20 |
| Reason to visit Georgia and Virginia | 36 |
| Reason to visit the school nurse | 32 |
| Reason to warn boaters | 22 |
| Reason to watch "Sesame Street" and "Nova" on mute? | 71 |
| Reason to wear a hat | 20 |
| Reason to wear boots, perhaps | 29 |
| Reason to wear earplugs | 23 |
| Reason to wear glasses at home? | 31 |
| Reason to wear shades | 21 |
| Reason why | 10 |
| Reason why all the computers are down? [1976*, 2005] | 52 |
| Reason's mate | 17 |
| Reason's partner | 20 |
| Reason, for one | 15 |
| Reason, in philosophy | 21 |
| Reason-based faith | 18 |
| Reasonable | 10 |
| Reasonable conjectures | 22 |
| Reasonable facsimile? | 21 |
| Reasonable marriage expectation? | 32 |
| Reasonable opportunity | 22 |
| Reasonable person? | 18 |
| Reasonable practices | 20 |
| Reasonable response to "Do you think BP is handling the oil spill adequately?" | 88 |
| Reasonable target | 17 |
| Reasonable treatment | 20 |
| Reasonableness | 14 |
| Reasonably competent | 20 |
| Reasonably good teammate on a bowling team? | 43 |