sort by Rank | Alpha
| Possible Meanings | Rank |
| Force Operations Xtreme | **** |
| Family Office Exchange | *** |
| Fiber Optic Extensions | *** |
| Florida Overland EXpress | *** |
| Front Office Exchange | *** |
| For Free Objects for X | ** |
| ferrous oxidation-xylenol orange | ** |
| ferrous oxidation/xylenol orange | ** |
| FM in Oxfordshire | ** |
| ferrous oxidation in Xylenol Orange | ** |
| Fighting Over X | ** |
| Friends of Extension | ** |
| Funny Original Exciting | ** |
| Free Objects for X | ** |
| For Fiber Optic Extension | ** |
| Ferrous Oxidation Xylenol | ** |
| Fiber Optic Extender | * |
| Free Objects for Xtallography | * |
| Factual Ontological EXpositive | * |
| Frequency Optimization Expert | * |
| Fiber Optics eXpansion | * |