| On a higher plane | 17 |
| On a high plane | 15 |
| On a high | 9 |
| On a heroic scale | 17 |
| On a Halloween rampage, say | 27 |
| On a greater scale | 18 |
| On a great bunt: "King Henry VIII" | 44 |
| On a grand scale | 16 |
| On a global scale: abbr. | 24 |
| On a glider | 11 |
| On a freighter | 14 |
| On a farm team | 14 |
| On a disk | 9 |
| On a diet, perhaps | 18 |
| On a dial, they're 6 | 24 |
| On a diagonal | 13 |
| On a detective's list | 25 |
| On a deck, perhaps | 18 |
| On a deck, maybe | 16 |
| On a deck beneath | 17 |
| On a date | 9 |
| On a curved path | 16 |
| On a cruise, say | 16 |
| On a cruise, maybe | 18 |
| On a cruise ship, say | 21 |
| On a cruise ship | 16 |
| On a cruise | 11 |
| On a crossing | 13 |
| On a close play: "Macbeth" | 36 |
| On a clipper, say | 17 |
| On a clipper | 12 |
| On a chair | 10 |
| On a certain spectrum | 21 |
| On a carrier | 12 |
| On a Carnival ride, perhaps | 27 |
| On a cargo ship, say | 20 |
| On a brig | 9 |
| On a break | 10 |
| On a branch, maybe | 18 |
| On a big scale | 14 |
| On a bicycle for two | 20 |
| On a bias: Abbr. | 16 |
| On a bias | 9 |
| On a bender | 11 |
| On a base | 9 |
| On a bar crawl, e.g. | 20 |
| On a 24-hour schedule | 21 |
| On a "What's Hot" list | 36 |
| On 8/21/1911 the subject (the letters dropped from the starred answers) was ___ | 79 |
| On --- with (equal to) | 22 |
| On --- with (comparable to) | 27 |
| On --- with (about the same as) | 31 |
| On --- (without commitment) | 27 |
| On --- (winning) | 16 |
| On --- (secretly) | 17 |
| On --- (running amok) | 21 |
| On --- (going strong) | 21 |
| On --- (equipotent) | 19 |
| On --- (counting calories) | 26 |
| On --- (comparable) | 19 |
| On --- (busy) | 13 |
| On -- with (similar to) | 23 |
| On -- with (much like) | 22 |
| On -- with (equivalent) | 23 |
| On -- with (equivalent to) | 26 |
| On -- with (equal to) | 21 |
| On -- with (comparable to) | 26 |
| On -- to nowhere | 16 |
| On -- of (for) | 14 |
| On -- knee | 10 |
| On -- firma | 11 |
| On -- boat to China | 19 |
| On -- -to-know basis | 20 |
| On -- (rampaging) | 17 |
| On -- (of equal value) | 22 |
| On -- (equal in value) | 22 |
| On -- (enjoying good luck) | 26 |
| On (a specified time) | 21 |
| On "E" | 16 |
| On 'E' | 14 |
| On ___ with (equal to) | 23 |
| On | 2 |
| Omsk's locale | 17 |
| Omsk's land | 15 |
| Omsk O.K.'s | 15 |
| Omsk denials | 12 |
| Omphaloskepsis subject, perhaps | 31 |
| Omphaloskepsis impediment? | 26 |
| Omphaloskepsis focus | 20 |
| Omphalos variety | 16 |
| Omphalos | 8 |
| Omphalophobia fear, perhaps | 27 |
| Omoo author | 14 |
| Omnivorous nocturnal mammal (Var.) | 34 |
| Omnivorous mammal | 17 |
| Omnivorous Looney Tunes devil, familiarly | 41 |
| Omnivorous Colorado critter | 27 |
| Omnivorous animals | 18 |
| Omnivore of stereotypes | 23 |
| Omnium-gatherums | 16 |