| Text | Length |
| Overwhelm; swallow | 18 |
| Obtain, as support | 18 |
| Once it was enough | 18 |
| Opera's Caruso | 18 |
| One-striper: Abbr. | 18 |
| One below lt. j.g. | 18 |
| Occurred afterward | 18 |
| Otitis-treating MD | 18 |
| One coming onstage | 18 |
| One in the running | 18 |
| Oscars prop: Abbr. | 18 |
| Official messenger | 18 |
| One-named New Ager | 18 |
| One-named vocalist | 18 |
| Omega-3 fatty acid | 18 |
| Orlando attraction | 18 |
| Orlando temptation | 18 |
| Orlando theme park | 18 |
| Olympics equipment | 18 |
| Ohm or joule, e.g. | 18 |
| Oilers' Brewer | 18 |
| One of the Greats? | 18 |
| Ontario-Huron link | 18 |
| One of five bodies | 18 |
| One of the Waltons | 18 |
| Oscar role of 2000 | 18 |
| Oilman Halliburton | 18 |
| One of the weasels | 18 |
| Overthrowing, e.g. | 18 |
| Overthrow, usually | 18 |
| Overthrow, perhaps | 18 |
| Overthrow, for one | 18 |
| Old World language | 18 |
| Onetime, old style | 18 |
| Once, in old times | 18 |
| Once, in days past | 18 |
| One-named designer | 18 |
| Old Testament twin | 18 |
| Older son of Isaac | 18 |
| Ones that got away | 18 |
| Old Bruin nickname | 18 |
| Obsolescent suffix | 18 |
| Op-ed column, e.g. | 18 |
| Ovidian infinitive | 18 |
| One half of essays | 18 |
| Old U.S. gas brand | 18 |
| Old Sinclair rival | 18 |
| One-time pump sign | 18 |
| Old gasoline brand | 18 |
| Oil company of old | 18 |
| One of the Lauders | 18 |
| Opera singer Simon | 18 |
| Opposite of ouests | 18 |
| O'Hare approx. | 18 |
| O'Hare posting | 18 |
| Open-shelved stand | 18 |
| One of les saisons | 18 |
| Opposite of hivers | 18 |
| Old English letter | 18 |
| Onetime anesthetic | 18 |
| Old knockout agent | 18 |
| Old knockout fumes | 18 |
| Old knockout cause | 18 |
| Of a culture group | 18 |
| Old antiknock fuel | 18 |
| Online reservation | 18 |
| Old liquid heaters | 18 |
| Old beaker heaters | 18 |
| Oxford prep school | 18 |
| Ones from far away | 18 |
| Old music magazine | 18 |
| Odd's opposite | 18 |
| Odds' opposite | 18 |
| Occurrence of note | 18 |
| Olympic activities | 18 |
| Obi-Wan after Alec | 18 |
| One in a wool coat | 18 |
| Ornamental pitcher | 18 |
| One-armed pitcher? | 18 |
| Opposite of humble | 18 |
| Office application | 18 |
| Ones living abroad | 18 |
| Outside, for short | 18 |
| Office phone abbr. | 18 |
| Office contact no. | 18 |
| Obtain by coercion | 18 |
| Optional equipment | 18 |
| Outlying community | 18 |
| Orator's asset | 18 |
| Observed carefully | 18 |
| Opera singer Pinza | 18 |
| One-on-one meeting | 18 |
| Off the high place | 18 |
| Online help source | 18 |
| Old West card game | 18 |
| One way to protest | 18 |
| One observing Lent | 18 |
| One with megabucks | 18 |
| Org. for some feds | 18 |
| Overnight success? | 18 |
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