| Meaning | Category |
| U P M - Kymmene Corporation | Business->NYSE Symbols |
| Uniras Picture Manager | Computing->Software |
| United Paper Mills | Business->Firms |
| Universal Patching Material | Miscellaneous->Clothes |
| Universal Permissive Module | Computing->Software |
| Universal Planar Manipulator | Computing->Software |
| Universidad Politécnica de Madrid | International->Spanish |
| Universiti Putra Malaysia | Academic & Science->Universities |
| University of the Philippines - Manila | Academic & Science->Universities |
| Unión Popular de Mujeres | International->Spanish |
| Unión del Pueblo Melillense | International->Spanish |
| User Program Module | Computing->Software |
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