| Text | Length |
| Opposite of obtuse | 18 |
| Org. for drillers? | 18 |
| Oral-B recommender | 18 |
| Oft-repeated words | 18 |
| Obey the plus sign | 18 |
| One with a craving | 18 |
| Optional component | 18 |
| Old British colony | 18 |
| Off-the-cuff words | 18 |
| Opposite of reject | 18 |
| Oliver Twist, e.g. | 18 |
| Only have eyes for | 18 |
| Oscar winner Brody | 18 |
| One way to be cast | 18 |
| Old reception aids | 18 |
| Osprey's abode | 18 |
| Of planes and such | 18 |
| Of the air: Prefix | 18 |
| Of flying machines | 18 |
| Opponent of D.D.E. | 18 |
| Odin and followers | 18 |
| Oxford alternative | 18 |
| Off the right path | 18 |
| Ottoman major-domo | 18 |
| Once's partner | 18 |
| Old Turkish titles | 18 |
| Onetime Met Tommie | 18 |
| Orders of business | 18 |
| One juggling stars | 18 |
| One handling stars | 18 |
| Ottoman Empire VIP | 18 |
| Ottoman commanders | 18 |
| Ottoman potentates | 18 |
| Opposite of oafish | 18 |
| Opposed, in oaters | 18 |
| Of a previous time | 18 |
| Old public squares | 18 |
| Of farming: Prefix | 18 |
| Of farm management | 18 |
| Océano contents | 18 |
| One-legged captain | 18 |
| Opera set in Egypt | 18 |
| Operatic Ethiopian | 18 |
| Opera set in Eqypt | 18 |
| Order to a shooter | 18 |
| One drawing a bead | 18 |
| One about to shoot | 18 |
| One taking a sight | 18 |
| Own, in Edinburgh | 18 |
| Outward appearance | 18 |
| One mode of travel | 18 |
| Opening in the ice | 18 |
| Outdoor interludes | 18 |
| O'Hare tenants | 18 |
| Open to the breeze | 18 |
| One place to roll? | 18 |
| Obviously unlocked | 18 |
| Open just a little | 18 |
| Of the same family | 18 |
| Ohio rubber center | 18 |
| Ordered separately | 18 |
| Old word of sorrow | 18 |
| One of the Osmonds | 18 |
| Oscar winner Arkin | 18 |
| Oscar-winner Arkin | 18 |
| Old-time wolfhound | 18 |
| One who cries wolf | 18 |
| Ogden Porter, e.g. | 18 |
| On the calmer side | 18 |
| Out of the weather | 18 |
| On the quiet side? | 18 |
| Oldsmobile compact | 18 |
| Olds compact model | 18 |
| On one's guard | 18 |
| Opening for Romeo? | 18 |
| One-time ring king | 18 |
| Old foe of Frazier | 18 |
| Other things: Lat. | 18 |
| Otherwise known as | 18 |
| One may assume one | 18 |
| Out of this world? | 18 |
| Outsider of a sort | 18 |
| Otherworldly types | 18 |
| Others, to Octavia | 18 |
| Of the same stripe | 18 |
| One of a gene pair | 18 |
| Order in the court | 18 |
| Outstanding player | 18 |
| Opera singer Gluck | 18 |
| Over the length of | 18 |
| One of the Julians | 18 |
| Of Swiss mountains | 18 |
| Old, in Oberhausen | 18 |
| Old woman, in Bonn | 18 |
| Old one, in German | 18 |
| Old one, in Aachen | 18 |
| Old man, in Munich | 18 |
| Org. of physicians | 18 |
| Org. for an OB/GYN | 18 |
| Oriental nursemaid | 18 |
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